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.”



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.