Peter Thiel invested $500k for 10% and was left with only 2.5% at IPO, so it looks like dilution is indeed stronger than I assumed. At that dilution rate, $1k

Peter Thiel invested $500k for 10% and was left with only 2.5% at IPO, so it looks like dilution is indeed stronger than I assumed. At that dilution rate, $1k in Facebook would be worth "only" about $1.9 million today.