Interesting thought, considering whether the
containment of singularities is possible in such a small device rather than worrying about the truth of the time travel discussion. But as I said, any errors of scientific fact can be attributed to his own misunderstanding of the processes involved. The actual predictions are much more important.
If his predictions turn out to be more-or-less correct, it's probably smarter to leave the country than to build a shelter anyway. And besides that, travel can be interesting and worthwhile for other reasons than fleeing conflicts.
