David Kipping

But then the problem with that is it becomes essentially unscientific.

So if you come up with a hypothesis that says there's aliens here, but they're completely by definition undetectable to us, then it's not like it's an incredible idea.

It doesn't mean the idea is wrong.

It just means science is not going to have the tools to answer that question.

Of course, because there's no evidence.

Sagan, I think, had this famous example like this dragon where he said –

Imagine I've got Carl Sagan, imagine he had like this pet dragon and he'd talk to people and say, I've got a pet dragon in the room with me.

And they'd be like, well, where is it?

Oh, you can't see it because it's invisible.

So they'd walk across the room and they'd try to touch it and be like, I can't feel it.

It's like, oh yeah, you can't feel it either.

It's also impervious to touch.

So they'd be like, okay, so I'll put my infrared goggles on and try and see the heat signature.

Oh, you can't see that either.

It doesn't emit any radiation.

So you can just keep going and going and saying it's just completely imperceptible.

And then it's fine.

You can have that idea that you have a pet invisible, imperceptible dragon.

But I can't address that with the tools of science.

So I'm not saying it's a crazy idea.