What you just said about free-climbing is perfectly applicable to building something solo. Except unlike climbing solo, building a product is easier because you could get support the whole way. Also you won’t die if you fail.
You should never expect enthusiasm to last. How many people are just as enthusiastic about going to the gym for years compared to when they first start out? These are all the things people need to realize before embarking on these solo journeys.
You may not like it, but if a person was drowning and they actually do start to “just swim better”, they will survive. Just do what you need to do.
Who would look at a drowning person and say "just swim better and you'll survive"?
A drowning person can't "just swim better". That's exactly why they're drowning in the first place.
What you're saying is true but not helpful. There's a whole process that goes into "just do it" that is weirdly unpopular to talk about. You have to become capable first, and that only happens in community where you can safely make a lot of mistakes.
You should never expect enthusiasm to last. How many people are just as enthusiastic about going to the gym for years compared to when they first start out? These are all the things people need to realize before embarking on these solo journeys.
You may not like it, but if a person was drowning and they actually do start to “just swim better”, they will survive. Just do what you need to do.