internetionals
But the phrase "What do you want?" is the closes normal translation, not counting the politeness forms.
That's not saying there is no market for something like this, but for anything but the longest flights it's going to be a very specific kind of customer.
If this were to happen I would imagine it to not be a capsule, but simply entire rows of chairs.
The main killer would still be the whole transit between the harbor and the rocket, but this could probably shave about half an hour.
The reason that Firefox switched to webextensions was in order to switch to a formal extension API that could be supported long term, instead of the old open integration API which made it difficult to readable without breaking all sorts of extensions.
There reason they adapted the web extension API that chrome uses, was because it largely made sense, was already pretty fleshed out and would allow extension writers that were already familiar with that to also target Firefox.
You have to gather the people, check them in and clear them during internation flights. Then you have to load everybody on a boat, ship them to the platform X miles into sea, unload them, take them up the big tower, letting them board and settle and depending on how predicatable this is, wait for clearance to take off.
Now is the short flight.
And afterwards we can do the entire thing in reverse.
Some things might be a bit more optimized, like perform customs, safety instructions etc during the boat trip. But the entire trip from arriving at the sea/space-port until leaving it at the destination would probably be making this a diminishing returns and only really interesting for the extremely long flights.
Grocery shopping is often less than 5 kilometers, but me and my neighbours often use the car for that (eventhough often it could be done by bike).
I think the biggest reason is purely cultural. It is normal (almost expected) that kids and teenagers go to school, sport and clubs by bike. You grow up riding a bike and it is your first real "liberation" from depending on your parents for everything.
It kinda represents freedom to go where you want to go before coming of age and being allowed to drive a car. (The minimum age to get your driving license used to be 18, though recently you can get a "starters license" at 17 as long as you drive under adult supervision).
And later on you realise that often taking the car, whilst great, isn't that more practical (and certainly not as economical) as taking the bike now and again.
It wouldn't be too hard to replace that Rc with an Rc that performs deferred drops by putting them in a queue and performing a number of drops at an oppurtune time (eg. using an idle-hook in a event loop).
It might even be possible to send all drops to a thread dedicated to dropping, but that would probably only work if the contents are Sync or Send. This form of async drops should always be possible for Arc.
But big pauses should rarely occur since refcounting is something that has to be added explicitly, Rust is a language where compound types are used extensively instead of building dynamic structures using collections for trivial things and the use of Drop trait is not something that can be fully relief upon (making that most solutions try to go without using it). This should make most drops pretty lightweight, even when dropping large numbers of items.