I studied ancient languages, because of corruption in my home country, I couldn't find any place in academy although my scores were above 90%. Moved to another country and taught myself web development. Naturally in time I lost almost all my knowledge of Latin, Ancient Greek, the whole ancient literature, history, philosophy and culture (everything from historical evolution of tremmas in letter i in ancient Greek to honey fish recipe in ancient Rome cousine). I'm super happy with Webdev tho but I think that also counts as data loss.

Recently read Fish!

It's a really nice book..

Really hard to implement when you have total idiots working with you