Lots of things and the most important question people should be asking, if this balloon is no threat...then why is the government hiding intel they have along with closeup pics of the pay load?There is a bunch of things that doesn't make sense.
If launched from China, it would have flown over Japan & Russia before it got to us.
You think they would have said something about that thing floating over their airspace.
Unless it was launched out at sea off a sub.
Then there is the fact that if it was detected over Alaskan airspace, you had to know where the airstream at that altitude was going.
It wasn't going back to the west for sure.
Too much shenanigans going on right now.