If you are a healthy person living frugally then I think the inflation in your personal basket of goods is actually higher than the fed numbers would dictate (esp for rent and housing).
https://comptroller.nyc.gov/reports/spotlight-new-york-citys...
If they can make it quiet enough to be supersonic over land, it's a lot more compelling. But even being supersonic for the atlantic crossing will shave hours off of most EU routes from NY.
I think the bigger problem is the time changes on a lot of routes make EU flights pretty efficient - you don't want the overnight flights to be shorter really (and I wish most were longer).
The complexity of designing an engine is comparable to that of designing an airframe.
This is Qualcomm's big business (and others), getting their patents into standards like 5G and then charging people a fair amount to use it - and they have to license it to everyone, even their arch nemesis. Or you just buy their chips.
For a patent of something you invented, but did not submit to become part of a standards-body, you absolutely can choose not to license it for any amount of money.
That being said, the CGNAT thing is just silly in 2023 - give us IPv6.
This is an absurd claim; vinyl LP records are just one counter-example. Some collectors will actually buy the vinyl disc from one source and then get a sleeve in near-mint condition from somewhere else. Does anyone buy used Apple packaging by itself?
A coin drops at a known speed and the right coin will get pulled by the right amount by a magnet or get rejected.