Why doesn't he just study the laws of physics? That woud pretty much rule out a visit from some other solar system.
We do not yet know all the laws of physics, time and space.
We get better at it, but have yet to crack many mysteries.
Perhaps we will one day. Those stars are out there for a reason.
Evidently you have joined a number of others who are utterly convinced in our or even their intellectual skills and accomplishments in knowing about all there is to know about such matters.
May you enjoy your smugness while it lasts.