For Lando to create a character, gain trust in Jabba’s crew and become “one of the boys” had to take same time. We’re talking about the galaxy’s greatest gansta’ leading the galaxy’s greatest gang. You don’t just walk into that place, buy the room a drink and get accepted.
But you do. See above.
ray_afraid said:
Luke has clearly advanced in skills. There’s certainly some time tied up there.
Not really. See above.
ray_afraid said:
The entire Rebellion has evaded the Empire, regrouped and found a temporary place to hide while also fining out about the new Death Star, examining the layout and finding a way to destroy it.
Just that group evaded the Empire, the others were elsewhere. But that is beside the point here.
There is no need to look for another place, since the normal method is to scout many places, so they had to have multiple options before decided to choose Hoth.
They merely need to relocate to the backup place, or next in line place.
Nobody knows when the bothans got the information, so it is possible that the Alliance leaders were already aware of the location of this second Death Star, and they were already analyzing and planning.
So actually nothing you said suggest that a great amount of time has to pass between the events at the end of the TESB and the beginning of ROTJ.