Note that "Premium Economy" is a newer term being thrown around and is different than Economy Plus, Comfort Plus and such that airlines throw around to denote the same economy seats with an extra 6 inches in front of you and maybe a free drink/snack.
First is like business, except your coat gets its own closet next to your seat, and you get Johnnie Walker Blue instead of Red like the plebes in business class ;)
Like I've been on flights with value economy, economy, economy plus, economy premium, business, first, first (premier? Or something). I've also been on flights that were "general," but if you paid 44$ extra you get a giant padded seat easily as big as or bigger than some first class seats I've seen.
See e.g. https://onemileatatime.com/emirates-a380-first-class-vs-busi...
I know people who fly first class between say, Heathrow and JFK, mostly for the VIP hand-holding at both airports, that can save you a lot of time.
Some airlines even have four class planes with the rise of premium economy.
We're here to learn, not to downvote dissenting or uneducated opinions. HN should be about becoming more correct, not just promoting those who are already 'right.'
Threads on climate change are one of the best comparisons, where people could argue they didn't believe it and others would (mostly) debate rather than downvote: https://news.ycombinator.com/item?id=10691804