It's not impossible. Just difficult. Given a couple decades and developments, who knows what can be possible.
Besides, falsifiability is determined in principle, and practical difficulties don't mean something is in principle impossible.
So I don't think there's a case for unfalsifiability here.
Besides, falsifiability is determined in principle, and practical difficulties don't mean something is in principle impossible.
So I don't think there's a case for unfalsifiability here.