Ten dedicated people are enough to nuture and grow the Art of silver gelatin. "Secrets" ?? Not so much - just skills to be learned and shared (And, there's absolutely no reason to assume commercial film and paper will ever go completely away. One generation of photo chemist will teach the next -- just as it's always been. Chemical photograpy can continue without Kodak or RIT.)
d
Denise;
One dedicated person such as yourself can make an awful lot happen that is good for the future of analog, but it can only go so far in the absence of specific knowledge. I'll give an example..
Good reciprocity and LIK in emulsions is obtained by the use of Iridium in an emulsion. A bottle of Iridium Chloride or Nitrate runs about $300 / gram, is stored under Argon and is used at the rate of 6x10^-6 moles / mole of Silver. So, you open a $300 bottle and use 1 mg and the rest goes bad within the week. Well, unless you can share (and once it is open you cannot ship it because it goes bad!) It so happens that there is a method to treat it so that it will keep for about 5 years. Did you know that? Does anyone on APUG willing to make emulsions know any of this?
This is the type of knowledge that will be lost.
Recenly, the inventor of 2e sensitization passed away! I know nothing about how to do this, even though a friend did all of the Organic and Physical Chemistry on our napkins at Red Lobster back a while ago, and no one else is willing to teach it. This would have to be re-invented essentially from scratch.
How many layers can we hand coat or machine coat at one time? Well, I've hand coated up to 6 layers but there are "tricks" and with machines, don't ask how. I was never an expert. I know a bit of the technology behind it, but I handed in all of my charts and graphs when I retired. I could not do this now if I tried. And back then, 14 layers was a snap. I've even got my notes but reasoning backwards will only give me the answer to one coating set, not all possible sets.
The list goes on and on and old formulas and methods, while useful, are "quaint" in some ways. It is akin to a teenager being asked to drive downtown to shop and instead of keys to the car, he is given a buggy whip! The poor kid doesn't even know how to hitch the horses! My dad never taught me how to do this. Our house was equipped with gas lamps, but I could not replace mantles or clean chimneys! No one taught me how. I can guess, but when I tried, I broke the chimney!
Analog can be perpetuated, but it is not easy to do it well.
PE