Sorry, when I said 200k, I meant withdrawing & spending 200k/year, not earning 200k/year. In today's environment you're more likely to be earning (at least) 40

Sorry, when I said 200k, I meant withdrawing & spending 200k/year, not earning 200k/year. In today's environment you're more likely to be earning (at least) 400k/year by the time you retire if you're following that playbook. If you take a pretty standard estimate of career and comp growth for an engineer that joined a FAANG company as a new grad and stuck around, generally speaking they'd get promoted to senior-equivalent within 7-8 years (faster for Facebook - 5 years there). Over that time, assuming annual expenses of ~50k/year (single, renting a 1-bedroom in the Bay, leaving you with 20-25k to cover everything else), and sticking everything that's left over into the market, you'd have well over a million by year 8. Let's then pessimistically assume your compensation never grows after it reaches 400k - at that point you'll be taking home ~225k after taxes, or 175k after expenses. Stick that into the market for another decade, you end up with ~5m. You might say that 50k/year in expenses is unrealistically low for someone living in the SFBA - it's not, really, you aren't even living with roommates and you have five figures to play with after housing and transportation (remember, food is close to free, since most of these places will feed you 3 meals a day M-F if you want). But even if you bump that up to 60k/year that pushes out your retirement date... by a year. Maybe. This is all inflation-adjusted, mind you. 5m in today's dollars is enough to retire on extremely comfortably, and unless you decide to drastically increase your spending in retirement it'll be growing faster than your draw-down. I imagine most people who do this either keep working or start working on their own projects. I'm not aiming for this just so I can watch TV all day, let me tell you :)