As I've said before, I play devils advocate with the subject, I'll look at any possible angle, and possible explanations.
My personal thoughts are, ufos are officially real, and looking at the capabilities of the craft shown, there's nothing even remotely close, to the tech being used and how they perform (based reliable witness accounts, ie David fravor and other military personal who have seen these craft). Not even 10 steps even getting close to anti gravitytech. If they have, id expect tech derived form that, I mean I'm sure fibre optics and shit like that, spawned from military or nasa tech. We're just not there yet. So doesnt really leave much left to guess where the tech comes from, logically if we don't have the tech here, then its its from somewhere else.
Until its confirmed, I'll continue to question it all, its a fun subject regardless