I half agree with his math on private stock, though some private stock is like having the same access as the ultra rich to underpriced off market stock..

I don't follow the stock grants math at all. AFAIK what is usually given is a mix of low priced and ultra-low priced options vesting over 5 years. One might end up getting 300K a year of profit in vesting options by year 5 but is anyone getting $300k in pure stocks given to them in year one?