I'd say it's one of many potential problems. We've already observed a couple interstellar comets, right? So we actually already know that there are objects out

I'd say it's one of many potential problems. We've already observed a couple interstellar comets, right? So we actually already know that there are objects out there. Certainly it wouldn't hurt to send some laser accelerated probes out there and see what we find, but human travel seems like pure sci fi.