> "These Aliens"
Why do you say aliens? It seems more likely they are experimental human developed aircraft.
Why do you say aliens? It seems more likely they are experimental human developed aircraft.
https://patents.google.com/?inventor=Salvatore+Cezar+Pais
Of course, you may have seen them and be in the camp that they are not achievable for the next 100 years. That is completely reasonable and I appreciate that point of view.
I don’t think we have any such thing…