Full Transcript

The Fundamentals | Why is Investing Important?

8:53843 summary words · ~4 min readEnglishTranscribed Jun 29, 2026

Summary

Investing is a systemic necessity to protect purchasing power against the continuous erosion of inflation and to dramatically lower the lifetime saving burden through the exponential dynamics of compound interest.

Relying solely on linear active income to fund post-labor life demands an unsustainable savings rate, whereas investing converts time into financial leverage, dramatically reducing the personal capital required to survive retirement.

Section summaries

0:00-1:00

Introduction to Securities and Returns

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Richard introduces the widespread deficit in financial planning and literacy, particularly noting that more Canadians own pets than comprehensive financial plans. He defines investing fundamentally as allocating capital to generate a return. He introduces investment vehicles, known as securities (such as stocks and bonds), which outline what investors are entitled to and establish how returns are calculated and expressed as annualized percentages.

Investing is defined as utilizing current capital with the expectation of generating an additional return over time.
Securities, like stocks and bonds, act as the underlying contracts defining the rights and payout mechanisms of your investment.

It sets the semantic baseline for all investment instruments and terms used throughout the series.

1:00-3:00

The Risk-Return Trade-Off and Diversification

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This section explains the foundational relationship of modern portfolio theory: the trade-off between risk and return. Since higher potential returns inherently require taking on higher risks of loss, investors must learn to manage volatility. Richard introduces diversification as the core tool to mitigate this risk, explaining that spreading investments across uncorrelated assets (like combining an auto stock with a pharmaceutical stock) prevents isolated industry shocks from destroying a portfolio.

The risk-return trade-off dictates that achieving higher long-term yields requires accepting higher potential volatility or loss.
Diversification minimizes downside volatility by ensuring assets in a portfolio do not move in perfect correlation.

These are the two most fundamental risk-management concepts in financial theory.

3:00-5:00

The Retirement Deficit and the Threat of Inflation

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The video shifts to the practical urgency of investing, pointing out that government assistance programs and corporate pensions rarely cover the full cost of retirement. Using a hypothetical goal of $600,000, Richard demonstrates that relying purely on linear, uninvested savings requires an unmanageable $1,250 a month over 40 years. This dynamic is further worsened by inflation, which acts as a constant tax on static cash by reducing purchasing power year over year.

Relying strictly on active, linear savings to fund retirement requires an unsustainably high monthly savings rate for most people.
Inflation acts as an entropic force, steadily eroding the real-world value and purchasing power of uninvested cash.

It explains the dual macroeconomic forces—underfunded safety nets and inflation—that make investing a non-negotiable survival tool.

5:00-7:00

Comparing Savings Timelines: The Cost of Delay

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Richard details how starting to invest early completely transforms the math of saving. By investing at a 6% annually compounded return starting at age 25, the required monthly contribution to reach $600,000 drops from $1,250 to just $323. The video contrasts this with starting later in life: waiting until age 45 causes the required monthly contribution to quadruple to over $1,300, while waiting until age 55 demands an impossible $3,000 per month.

Starting early significantly reduces out-of-pocket savings burdens due to the compounding timeline.
Delaying the start of an investment plan causes required monthly savings amounts to rise non-linearly, quadrupling over a 20-year delay.

This section provides concrete, numerical proof of the mathematical power of early compounding.

7:00-8:00

The Arithmetic of Compounding and the Real-World Crisis

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The video walks through the step-by-step arithmetic of compound interest, showing how a $100 asset earning 10% yields $10 in Year 1, but $11 in Year 2 because interest is earned on both the principal and the prior interest. This compounding effect creates exponential, rather than linear, growth. Richard closes with a sobering warning from a 2016 Broadbent Institute study, showing that roughly half of non-pensioned Canadians aged 55 to 64 have less than one year of retirement savings due to delaying this process.

Compounding operates on exponential mathematics, earning interest on previously earned interest over time.
Postponing investing leads to systemic societal retirement deficits, as demonstrated by severe pre-retirement savings shortages.

It clearly demonstrates the mathematical mechanics of exponential growth and details the societal cost of ignoring it.

Key points

The Risk-Return Symmetry — The baseline relationship of finance dictates that higher potential returns require accepting a greater risk of capital loss; investors must intentionally locate their position on this spectrum based on their capacity for volatility.
Diversification as Correlation Decoupling — Diversification lowers overall portfolio risk by distributing capital among uncorrelated assets that behave independently under identical macroeconomic pressures.
Inflation as Entropic Purchasing Power Loss — Inflation acts as a persistent decay rate on static cash, meaning that holding uninvested money guarantees a loss of real-world purchasing power over time.
The Exponential Mechanics of Compounding — Compounding operates as a non-linear feedback loop where reinvested returns generate their own subsequent returns, causing asset growth to accelerate over time.

“diversification is the spreading out of investments over a number of different Holdings to improve the overall risk return trade-off of the entire portfolio” — Richard Coffin

“nothing makes saving for your financial objectives easier than starting early” — Richard Coffin

AI-generated from the transcript. May contain errors.

0:00

we've all heard about amnesty and you

0:02

may have even weathered a conversation

0:03

about stocks in our ESPYs yet more

0:06

Canadians owned cats than a

0:08

comprehensive financial plan and few are

0:10

confident in their financial knowledge

0:12

so before we go into the details let's

0:15

start from the beginning hi my name is

0:17

Richard coffin and welcome to the plain

0:19

bagel let's go over the basics what is

0:24

investing well in short investing is the

0:26

act of using your money in a way that

0:28

earns you a return investments come in a

0:31

variety of forms but most people use

0:33

what we refer to as securities or

0:35

investment instruments these are things

0:38

such as stocks and bonds that come from

0:40

the company that you decide to invest in

0:42

these instruments embody the implicit

0:45

rules of your investment including what

0:47

you're entitled to and how you actually

0:49

go about earning your return your return

0:52

is of course the money you earn on top

0:54

of what you've committed to your

0:55

investment and it's typically

0:57

represented as an annual percentage for

0:59

example if I invested $50 at the

1:02

beginning of the year and I earn a 10%

1:04

annual return at the end of the year

1:06

I'll have 55 dollars this investment

1:08

return is not often guaranteed and will

1:11

depend on how your investment performs

1:12

throughout the year for example if you

1:15

invest in a company and it does well you

1:18

will likely earn money on your

1:19

investment but if the company struggles

1:21

to make a profit you could actually lose

1:23

money clearly investors want to maximize

1:26

how much money they earn while

1:28

minimizing the risk of losing money

1:29

which brings us to the first fundamental

1:32

relationship faced by investments the

1:34

risk return trade-off some investments

1:36

pose a higher risk of losing you money

1:38

than other investments but it's

1:40

generally accepted that these higher

1:42

risk investments are required to achieve

1:44

higher returns in other words we have to

1:47

balance how much additional risk were

1:48

willing to take on to achieve those

1:50

higher numbers for example imagine you

1:53

have two investment options one has a

1:55

50% chance of burning you a 5% return

1:58

and a 50% chance of earning you nothing

2:00

well the other one has an equal chance

2:02

of earning you a positive 15% or

2:04

of 10% return if you wanted to earn a

2:07

positive 10% total return you'd have to

2:10

invest some of your money in the riskier

2:12

investment since the safer investment

2:14

has no chance of achieving this amount

2:16

to lower their risk investors use a

2:18

technique that's integral to investing

2:21

diversification diversification is the

2:23

spreading out of investments over a

2:25

number of different Holdings to improve

2:27

the overall risk return trade-off of the

2:29

entire portfolio a fancy way of saying

2:31

don't put all your eggs in one basket

2:33

I spreading out your investments you

2:36

decrease a chance of having more than

2:37

one investment lower at the same time

2:40

diversification works best when your

2:42

investments are uncorrelated meaning

2:44

that they move independently of one

2:46

another for example if you had all of

2:48

your money invested in two car

2:50

manufacturers chances are they will be

2:52

somewhat correlated and if car

2:54

manufacturers don't do well in a given

2:56

year your portfolio will see a drop a

2:58

portfolio holding a car manufacturer in

3:01

a pharmaceutical company on the other

3:02

hand will be more diversified and less

3:05

impacted by the downfall of one of the

3:07

businesses diversification and the risk

3:10

return trade-off are two paramount

3:12

investing concepts and it's important to

3:14

keep them in mind when you're managing

3:15

your finances we'll go over the two in

3:18

further detail moving forward but for

3:20

now this basic understanding will

3:21

suffice so now that we've gone over

3:24

investments on a high level let's get to

3:26

the meat of the video why is investing

3:28

important well for many investing is

3:31

required to reach financial goals

3:32

financial goals can include things such

3:34

as buying a house taking regular

3:36

vacations and most importantly funding

3:39

your retirement when you retire you stop

3:41

earning an income and so you need to

3:43

make sure you have money coming from

3:44

somewhere to pay the expenses and bills

3:47

luckily there are a number of tools

3:49

available to help you retire some

3:51

employers offer a pension plan which

3:53

pays out when you retire and in Canada

3:55

we have access to a number of programs

3:56

including the Canadian pension plan and

3:58

old age security that also supplement

4:00

our retirement

4:01

but not everyone has full access to

4:04

these tools at the end of the day a

4:06

large chunk of your retirement will be

4:08

funded by the money you've saved up

4:09

until that point and you may need to put

4:11

aside more than you expect for example

4:14

you may ascertain at the age of 25 that

4:16

you'll need $600,000 by the age of 65 to

4:19

retire keep in mind that this number and

4:22

all future example numbers are somewhat

4:24

arbitrary and are simply for the purpose

4:25

of example your own investment

4:27

objectives will be unique to your own

4:29

circumstances ignoring inflation

4:31

investments and government assistance

4:33

this amount would provide you $24,000 a

4:36

year in retirement if you live to the

4:38

age of nine million to reach this

4:40

objective using just your income you

4:42

need to save approximately fifteen

4:43

thousand dollars a year or $1,250 a

4:47

month over 40 years that number is

4:50

simply not manageable for some and the

4:53

situation becomes even more dire when

4:55

you take into account inflation

4:57

inflation is the overall increase of

4:59

consumer good prices meaning that every

5:01

year your money sits around it's

5:03

actually losing purchasing power because

5:06

the cost of living is rising for example

5:09

in 2016 the inflation rate was 1 point 4

5:12

3 percent meaning that on average prices

5:15

including your rent and your food bill

5:17

increased by that amount this is why

5:20

investing is important it significantly

5:22

lightens the burden of saving for

5:24

retirement while maintaining your

5:25

money's value against inflation but many

5:28

people don't think about saving for

5:30

their retirement until later on in life

5:32

assuming that they'll make up the

5:33

difference in the future but if there's

5:35

one lesson I'd like you to take away

5:36

from this episode it's this nothing

5:40

makes saving for your financial

5:41

objectives easier than starting early

5:43

this is because of another very

5:46

important investment concept called

5:47

compounding which will acclaim through

5:49

the continuation of our example let's

5:52

assume that you are able to invest your

5:53

money at a 6% annually compounded return

5:56

meaning that you earn 6% of what you

5:58

invested once a year if you started

6:00

saving at the age of 25 with this return

6:03

you need to save a total of just under

6:05

three thousand nine hundred dollars a

6:07

year or about three hundred and twenty

6:08

three dollars a month to reach six

6:10

hundred thousand by the age of sixty

6:12

you'll notice that we are now saving

6:14

over $900 less a month than we would

6:17

without investing but that's assuming we

6:20

start early at the age of 25 let's

6:22

instead say that you start your

6:24

investing at the age of 45

6:26

so you've half the amount of time to

6:28

reach the 600,000 you probably need to

6:30

double your savings right well not

6:33

exactly

6:34

your annual contribution will more than

6:36

quadruple to over $16,000 a year or over

6:40

$1,300 a month and if you start at 55

6:43

it's gonna be over $45,000 a year or

6:46

over $3,000 a month this is the power of

6:50

compounding and it can be both your best

6:52

friend and your worst enemy when it

6:54

comes to saving compounding or interest

6:57

on interest is the process by which the

6:59

returns of an asset are reinvested

7:01

meaning that they are in their own

7:02

returns in other words if you reinvest

7:06

the money that you earn on your

7:07

investment your savings will grow at an

7:09

exponential rate the longer you have if

7:12

for example you invest $100 in an asset

7:15

that earns you 10% a year in your first

7:17

year you'll get $10 now many people

7:20

might think that in year two you also

7:22

get $10 but that's not the case you'd

7:25

actually get $11 because now you're

7:27

earning 10% on both the $100 that you

7:29

invested and the $10 you earn from year

7:32

one in the year after that you would

7:34

earn over $12 then over 13 then over $40

7:37

and so on so you can see that your

7:39

savings are actually exponential meaning

7:42

that the longer you have your money

7:43

invested much higher your payoff is this

7:46

makes investing a lot easier when you

7:48

start early and a lot more expensive

7:50

when you wait till later on so it's

7:53

needless to say that learning about

7:55

investments early is important because

7:57

it can be very costly to put off and

7:59

unfortunately a lot of Canadians are

8:01

finding this out too late

8:02

in fact in 2016 the Broadbent Institute

8:05

indicated that roughly half of non

8:08

pension earning Canadians between the

8:09

ages of 55 and 64 had savings

8:12

representing less than one year's worth

8:14

of retirement that's one year of a

8:18

properly funded retirement taking into

8:20

account government

8:21

supplements it's clear that this is not

8:24

something we can put off because too

8:26

often people find out too late but they

8:29

should have started earlier so take the

8:31

time to learn about how to save your

8:32

money and how to invest because it could

8:34

make a huge difference in how your

8:36

future plays out and hey we'd be happy

8:38

to help you here if you like this video

8:40

please leave a like and if you like what

8:42

we're doing here please subscribe if you

8:44

have a topic you'd like us to cover in a

8:45

future video

8:46

please leave a comment down below for

8:48

the plain bagel my name is Richard

8:49

coffin thanks for joining me today

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