Oh yes, yes, yes.
Good link there,
@tomorton
Compound Interest is Nature's secret doomsday weapon.
[ It is also completely and totally incomprehensible to politicians, bureaucrats and all policy makers, which bodes ill for the future of humanity ]
But for those willing to grasp it's power, it's a route to prosperity
For any still reading who may struggle with complex multiplication -
A 'magic' number to keep in mind is ~7%.
At this abracadabra rate, you basically double your initial start amount every tenth time it's applied.
So £1,000= at 7% APR becomes £2,000 after 10 years, £4,000 after 20 and so on...
Why doomsday? well, if you started with a grain of sand and doubled it according to this rate per minute, then...
You get 2 grains @ 10 minutes, 4 grains at 20 mins, 8 grains after 30 etc...
which is easy enough to do for the first hour or two
However, you will not have time to get bored of the task, as long before the day is out, you will run out of sand -
There is not enough sand in the entire Sahara to complete a single day of this, more pointedly, there isn't enough sand on the planet to do this. Heck, you could use all the sand on Mars too, and still not have anywhere near enough, lol.
Compound Interest is Lethal.
If you don't believe, just try it.
(or ask anyone with a runaway credit card debt)