> London isn’t more expensive than SF.

Zurich is.

> And I have colleagues who make £450k+

Just as there are American devs pocketing 7 figures annually. Again, the number of European devs making >$100k is a fraction of a percent. You can be making $100k in the US after a 6 month bootcamp or in AU/CA with a couple of years experience.

> Zurich is Not when you factor in the tax differential

I doubt that $100k is the 99th percentile for London developers, maybe it is for European in general.

If you've read salary threads, you’d know that everyone on Hacker News makes $1.5 million per year as an entry level software engineer, owns three houses and a Ferrari, and has a supermodel significant other.