Knock, knock .........
In fact, aliens may be here with us right now, she says, and we just can't see them for some reason.
:-) Nudge, nudge, wink wink, say no more, squire :-) ..... https://youtu.be/dlDXVI6uM78
And as for a valid reason for such as may be alien blindness ..... and which is coincidentally a remarkably stealthy tool for overwhelming exploitation in all manner of applications ....... are the tales told here in this Eureka moment, the root cause of Persistent Arrogant Earthly Ignorance.
You just are not well enough developed to process future information with advanced intelligence.