There's nothing a balloon can do that can't be done better some other way.
Actually, there are some aspects of moving so slowly that are benefitable, and being that high in altitude as well.
It's probably just a research balloon that went the wrong direction, but we need to shoot it down and see for sure. ...but that'll never happen with chairman binden in charge of the USSA.
As a person that focused engineering & physics in college, it seems this balloon setup is rather well built, designed specifically for traveling a very, very long time. Depending on how much control it has to alter direction, & what type of sensors, coms, and A.I., this balloon could have numerous possible designs that could do a variety of tasks. I hope that they don't blow it out of the sky, and find a noninvasive means to bring it down so we could get a looksie.
I find this interesting; wasn't it you that in another post was talking about a police pursuit, and how many are not going on high speed car chases as the chance for something going wrong and could cause death or destruction of personal property. The conversation continued with , we have means to track them and get them in a safer location or venue. Wasn't that something you mentioned? Asking as that is exactly what Biden seems to be doing.
On a tangent, I know what everyone is thinking right now that has ever bought something from Amazon, if this was a surveillance balloon made from China for USA consumers -that the Balloon would have already fallen to the earth by now.