7 Jan

Limited Time Only

Lifespan ~ 80 years*52 weeks/year ~ 4k weeks

If you are 40: 2k weeks to go.

If you are 70: another 500 weeks.


If you read a book a week for 50 years, you will read ~ 2500 books.

Approximately 130M books have been published.


In 2013, India’s PPP adjusted median per capita income was ~$1,500. So ~ 400M people < $1500/yr.

  • Since it is PPP wage, think about living on $1500/year in the US
  • Another way to think about it:
    The wage of median American working for a year (~ $27,000) > wage of 18 Indians working for a year
  • Yet another way to think about it:
    Avg. career ~ 35 years (30–65)
    What median American will earn in 2 yrs = lifetime earning of an Indian earning the median income

The Guilded Age

“How many hours are needed to qualify to take the State Board examinations?
Cosmetologist = 1600 hours, Barber = 1500 hours, Esthetician = 600 hours, Electrologist = 600 hours, Manicurist = 400 hours.” From https://www.barbercosmo.ca.gov/forms_pubs/publications/faqs.shtml

“California EMT programs are at least 160 hours and include at least 136 hours of didactic training and at least 24 hours of clinical training.”

How to Become an EMT in California | Certification in CA


There are ~ 25B chickens in the world. More here.


US from coast to coast is ~ 3k miles. The earth’s diameter is ~ 8k miles. Earth is puny. US is large.