How long can silver salt photographic paper survive?

First of all, photographers in the professional field still use film, because today's digital cameras are still inferior to film in imaging (135 field. The digital back of those large formats is not under discussion.

However, film is still silver salt today, and there is no substitute for silver salt.

As for environmental pollution, digital cameras also pollute the environment, such as plastics and circuit boards, which are very polluted ~ just like old computers and old appliances ~ ~ ~

There are only two possibilities to eliminate silver salt. One is that digital technology completely surpasses film, and the other is that silver salt replaces film. But in my opinion, it is impossible for digital imaging to surpass film now, because the principle of digital imaging, unless digital imaging completely abandons CCD and CMOS today, adopts new digital imaging methods.