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Home » Compound Interest…Friend or Foe?

Compound Interest…Friend or Foe?

When asked, "What do you consider mankind’s greatest
invention?", Einstein replied, "Compound interest!" To this bit
of wisdom I’d like to add, "If and only if it’s working FOR you."
When it’s working against you, it’s a beast!

If we take the time to understand the compound interest
formula, we can see how to defeat the beast and release the
enormous power of compound interest for OUR good.

I promise not to get too abstract or mathematical in this
discussion, so, follow along. It will be worth the effort.

P{t} = P{0} x (1 + I) ** t

This is the compound interest formula. It says:

P{t} – The Principal value at some time in the
future,
lets call
it, "t" years, is equal to
P{0} – The starting principal value times (1 + I)
raised to
the power of "t" where
I – is the growth factor and it’s
expressed as
the
interest rate, "i" divided by 100, or
i/100.

In English, if I have $100 today, that’s "P{0}", and I want it
to grow for 10, that’s "t", years at 5%, that’s little "i"
then the substitution looks like:

P{10} =
$100 x (1 + 5/100) ** 10

When this formula is working AGAINST you, i.e., when you
are in debt, P{0} is the amount you borrowed and P{t} is
what the bank gets — from you, after time "t". To the bank,
you look like an investment with a future return.

When this formula is working FOR you, P{0} is the amount
you invest and P{t} is what you get after "t" years of
compounding.

Look closely at this formula then think about what
conventional financial wisdom encourages us to do
regarding investing and borrowing money. Conventional wisdom
would have us believe that we should try to be both borrowers
and investors at the same time. It says, start investing early
to take advantage of "t", time in the compound interest formula.
However, this neglects P{0}, the amount you have to invest. If
you have debts, you can’t take full advantage of P{0} because
you’re paying part of what you could be investing to the bank.
Remember, to the bank, you look like an investment that pays a
future return.

If we are to defeat the beast, we either have to avoid
it altogether, i.e., borrow ZERO dollars (in which case P(0)
is ZERO) and therefore the bank gets ZERO; or if we’re already
in debt, we have to drive time "t", the time we spend paying
off a debt, to zero (or as short as possible). If we are
successful at driving the time spent in debt to ZERO, then
any number raised to the power of zero is 1, which means that
at worst, we’ll owe the bank what we borrowed and nothing more
(i.e., no interest). Of course, there’s no incentive for the
bank to loan you money for zero time, but it doesn’t matter.
They can "think" they’re loaning you money for 30 years, and you
can still work to reduce time "t" to as short as possible,
thereby defeating the beast.

Now, unleash the power. When you have defeated the beast,
you have done so by reducing the time spent in debt, "t", to
as short as possible. The average American can hack 25 years
off their 30 year mortgage. When you do this, you have also
increased the amount of P{0} – the money you can invest, by
an enormous amount. Think of your monthly mortgage payments
becoming monthly investments and you get the picture.

You now have a big chunk of money each month, P{0}, and
ample time for it to compound, t, for the power of compound
interest to really change your life.

__________________

Greg Moore is a Certified Financial Independence Seminar Leader
and teaches The Debt-FREE & Prosperous Living(tm) system for
debt elimination and wealth building.

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