CompoundTime

Compound interest is interest added to the principal of a deposit or loan so that the added interest also earns interest from then on. This addition of interest to the principal is called compounding.

https://en.wikipedia.org/wiki/Compound_interest

In [3]:
%pylab
%matplotlib inline
import pint
Using matplotlib backend: TkAgg
Populating the interactive namespace from numpy and matplotlib
In [4]:
u = pint.UnitRegistry()

"It just takes a minute"

In [19]:
u.minute/u.day
Out[19]:
1.0 minute/day
In [20]:
u.minute/u.day*(5*u.day/u.week)
Out[20]:
5.0 minute/week
In [21]:
u.minute/u.day*(5*u.day/u.week)*(50*u.week/u.year)
Out[21]:
250.0 minute/year
In [22]:
annual_savings = u.minute/u.day*(5*u.day/u.week)*(50*u.week/u.year)
annual_savings.to(u.hour/u.year)
Out[22]:
4.166666666666667 hour/year

If you spend 4 hours a day doing your job and 4 hours a day automating 1 minute of it, in 1 work year you'll break even on that minute.

In year 2, even if you never automate a part of your job again. You'll have an extra 4 hours/day, doing 12 hours of work in 8 hours.

In [ ]: