[microtonal]

Putting it more directly: would YC think that this is a good investment of money?

Well, if that would be the criterium, a lot of great investments would never have happened. E.g. many railroad routes that were constructed in the late 19th century took decades to be profitable. However, in the very long term they were good investments. Luckily, we had/have governments that are bold enough to invest in stuff that doesn't lead to an IPO the next 5 or 10 years.