I can't find it now, but I read the other day that something like nearly 20% of bitcoin at least may be in limbo this way. At ~19m bitcoin in total, 20% of that

I can't find it now, but I read the other day that something like nearly 20% of bitcoin at least may be in limbo this way. At ~19m bitcoin in total, 20% of that in USD is a deeply uncomfortable number.