Comparing new grad compensation packages from the elite (sought after by the big employers) schools suggests close to 2x.

Boston area seems to be +50% to +75% in 10 years, like role to like role. That's a CAGR of 5% to 6%. It only takes a CAGR of 7.2% to double in 10 years.

It would be easy for someone who was 2-3 years into their career to now be making double at 10+ years' experience, a couple promotions, and a 50-75% overall salary inflation figure.