Agreed. There's a whole universe of possibility out there. Which is why it
can be difficult to understand some sceptics who attempt to rule out
entirely ET origins for UFOs and attempt to portray that as a rational
argument, when in fact it is an argument based on close minded ignorance.

How do you meet the argument that.

1) They would have placed AI on the Web and therefore not need to
observe by any other means. From the stand - point of the Web they can
effectively get us to do all their observing for them

2) The accepted means of interstellasr travel is by means of laser
acceleration and Von Neumann probes. They may (or as I would prefer to
say may NOT) have warp drives now but the first probe will be a VN
laser almost certainly.

3) Why are thedre crashes?

No one has yet managed to give me a satisfactory answer on any of these
points.

Incidentally following point 1. They could make us build their laser
decelerator!