I find this scary. Because: Say this technology isn't that hard, say that we are actually technologically capable of making this a reality? Of making a craft th

I find this scary. Because: Say this technology isn't that hard, say that we are actually technologically capable of making this a reality? Of making a craft that can basically separate itself off from the rest of the universe and flit off to wherever it wants with impunity? That means that there are very likely many many other alien species out there who have similar capability. And those species don't actually have to be that smart or advanced, they could be just as violent and messed up as we are. And they could be zipping in and out of our atmosphere all the time. I guess this is the first time I've considered that this whole UFO/alien thing might be real. God, this might be why they all look the same - the underlying technology requires the same basic external shape... but the craft could be from different civilisations.