Nothing kills this delusion more than spending a year building something that you can’t seem to successfully market... multiple times. Then you realize there’s almost zero value in the technical part, and you can only chuckle at HN comments arguing about Python vs Node as if that’s the crux of a new business.
I definitely relate to this. I use Go a fair amount, and any conversation about Go on /r/programming invites a whole bunch of "every product built on a language without generics is doomed to fail". While generics would be a nice feature to my mind, I like Go for the tooling and the ecosystem, which are still an insignificant contribution to the success of a commercial product, but still many times more significant than the type system (and I'm a fan of type systems too).
Truth is, Python or Node or Go doesn't matter. Your customer won't care if it takes some input and output something they expected. Technology is cheap.
Whether you can sell your startups or not, is a completely different matter
maybe your marketing has zero value because you're doing it wrong
It's worthless to everyone except a drowning man, to whom it's priceless.
Supply and demand are highly dependent on context. A strong technology base in a business is usually only required after you're starting to see scaling problems.
“Canadian start-up sells bottled air to China, says sales booming”
https://www-m.cnn.com/2015/12/15/asia/china-canadian-company...
Marketing will take care of that. Half-kidding.