[the_af]

I don't think that's true, or at least, you're jumping prematurely to conclusions and sort of begging the question too.

The "U" just means "unidentified", not "contradicting our understanding of physics" or "extraterrestrial intelligence".

There are many life forms on Earth that remain unidentified by many estimations, and we keep discovering new organisms. "Unidentified" doesn't have to violate our understanding of the universe.

[revscat]

But if it does, then our understanding is wrong. That means there are new things to discover.

One of the common reported characteristics of some UAP is that they are able to accelerate hypersonic speeds without a sonic boom.

If that is true then there are things to be learned here. You appear to be saying that this obviously cannot be true because it violates what we currently know.

I think that is tragically unscientific.

[the_af]

> But if it does, then our understanding is wrong. That means there are new things to discover.

That's a big "if". If magic exists, then maybe Gandalf is real.

That there are new things to discover there is no doubt. I don't know how it relates to your need to believe in ETs visiting Earth, but rest assured we have plenty of things to discover about the universe. Most things we will never know.

> One of the common reported characteristics of some UAP is that they are able to accelerate hypersonic speeds without a sonic boom.

> I think that is tragically unscientific.

What's tragically unscientific is cherry picking reports (sometimes by people who are not even claiming the final implication you'd like), disregarding the obvious implications (hoax, liars, top secret military tech, etc) and jumping to conclusions.

What's tragically unscientific is not understanding the scientific method and that extraordinary claims require extraordinary evidence.