>>3420>Most pre-1945 anime is lost foreverAt least one can assume that the percentage of anime lost is very small compared to the amount of anime permanently archived, by virtue of how hard it is to just produce anime, and thus the limited quantity of anime that could be lost in the first place.
Manga? Manga is fucked.
To give you an idea, when in 1977 Kodansha started the massive Tezuka Complete Series, or the Tezuka Black Label, it was estimated that Tezuka had penned over 700 manga; the Complete Collection has 400 titles, meaning that about half of what Tezuka himself wrote is lost.
The Black Label took 20 years to print every manga they could find and some Tezuka remade from scratch (for example, the original printing of Shin Takarajima is lost, the one published by Kodansha was remade by Tezuka in 1984) and that's the best Kodansha could do.
It's not an exaggeration to think that there are more lost manga than known manga