There are junior level devs at FAANG that would otherwise would be either starting their own company or be considered senior level at most other startups/other

There are junior level devs at FAANG that would otherwise would be either starting their own company or be considered senior level at most other startups/other companies -- often they are really bright engineers at the beginning of their career, the same age as Paul Bucheit when he created a certain web email client at a FAANG company as a junior engineer.