What are you on about? I’ve switched to LED bulbs about 10 years ago, and I’ve never had to replace a single one…

I’d like to point out that the notion that most medieval Europeans never travelled beyond their place of birth is increasingly shown to be a misconception. Most peasants at least visited the nearest town frequently for trade and to attend processions for religious holidays, and many made a point of going on a major pilgrimage at least once in their live. There also the fact that people were often forced to relocate because of wars and famine, went on crusades, were sent away to learn a trade, or simply visited distant relatives. The thing that didn’t happen was tourism, which is how we mostly think of travel today. Here’s a medievalist’s perspective on it, and it’s not hard to find more sources if you go looking for them: https://medievallauren.wordpress.com/2020/12/02/medieval-myth-busting-travel/

I read an article about that. IIRC it’s mainly because there is only minimal bloodflow in your teeth - barely enough to supply it with nutrients (and still not enough you should skip external flouride etc.).

DJ Krush for some instrumental hip hop/trip hop.

Can’t speak for the US, but here in Germany there often aren’t 12 monthly salaries to a year. Many people get a Christmas bonus and/or a summer bonus, but just as many don’t. Personally, I get paid about 13 1/4 monthly salaries a year, so telling you my yearly salary would be more accurate than the monthly amount.