Time travel could exist, but whatever a time traveler does, they were always going to do. If they didn't prevent a catastrophe, they couldn't have prevented the catastrophe. Something would always have prevented them.
Crescent biscuits are a traditional pesach biscuit for some Ashkenazi Jews (not that I am one, lol) made with potato starch (can't use corn starch, it's Kitniyos) and matza meal (basically powdered matza) and other biscuit ingredients such as sugar and eggs. Those who don't eat matza with water ('gebrok') can't have them though.
And yes, there are also pesach cakes, known as plavas. And yes, they involve a lot of separating eggs.
I don't breath in exhaust either, fully concentrated. I have as much of a problem with diffused cigarette smoke as diffused exhaust, but I fucking hate smokers that make me breath in their second hand fully potent, carcinogenic, horrible smelling smoke.
I do have access to healthcare, as long as I can wait a few years, thanks to the wonders of the NHS. Google is but one company, the privacy respecting OSS I use still works great for me, better than ever in fact, Linux phones and GNOME have come a long way. There is a disturbing right wing trend across the world, but these things come in cycles, eventually it will go back in the other direction, and I wouldn't exchange it for the other benefits of today's world.
Don't get me wrong, it's awful. It's just I don't see earlier times being much better.
My dad was in a conversation that turned to talking about peas (for some reason), and the quality of something being pea like, and called it pea-ness. We only noticed when he paused, and said 'no, not like that!'
People look at the past with nostalgia tinted glasses. Sure, things are bad now, but in the past they were even worse. Out of all the times I could have been alive, this day, with all the medical and social advances we have, is the best/least bad.
Most of those seem to be white men, yes, although Zuko also fits into the second category of 'destined to join the protagonists'. I would also add Aaravos and that other guy from The Dragon Prince
Electrodynamix