Do you believe that aliens exist and have visited Earth? Why or why not?

I think it's unlikely that we are the only humanoid beings in the Universe.

It's quite likely that aliens walk among us in various forms. It's said that there are underground bases across the planet where different alien species live.

I also believe that other aliens may exist at different frequencies/dimensions to us which is why we don't see them.

If you read ancient texts and replace angel with alien, it works.

I suspect, like several other films, SG1 was based on fact. And that a lot of truth has been hidden from us - in plain sight.

Check out YouTube. There's a lot of footage and a range of documentaries that are pretty compelling. So many books have been written about aliens, it would follow that there has to be some truth in it.

I could be completely wrong but I've believed in aliens since I was a child. I've always subscribed to the view that, if it makes sense to me, that's all that matters. If aliens don't make sense to you, that's fine too.