Earlier quoted context omitted.
Pardon my ignorance, but why will the : "existing holdings will return to their yesterday prices at some point" ? The way you put it seems so inevitable (although "at some point" may be 100 years from now). So, as you're not the only one to say that, I'd like to know what makes you think that the holdings will get back to their previous level ? Because, if they increase from their current position, then you certainly…
It tends to fluctuate within a range but just to play devil's advocate, note that it took about 30 years to recover from the 1929 crash.
Your stocks from 1929 would not have recovered for quite a long time, but your stocks from 1925 would only take 6 years to get back in the black.