There are probably plenty of things that frustrate you about air travel, but waiting to take off or disembark is probably high on your list. Why should you have to board well before the plane is ready to get moving? Airbus
might have a way to cut that idle time to near zero, though: it recently received a patent
for a detachable passenger cabin that would lift into the airport gate. Your aircraft would only show up when it's actually ready to go, and would spend far less time on the ground as a whole (as it's just swapping cabin pods). It could also eliminate the convoluted boarding process, since you could take your seat right away instead of forming a queue in the terminal.