Bullshit. “The Mom Test” is the best, most methodical, most clearly applicable way to get that job done. If you apply it properly, you have an unbeatable (not perfect, but as close as possible in real world terms) approach.
You're a former employee cum VC who has NEVER launched any actual technical product, and yet you believe you know more than an anti-vc startup founder with multiple successful products under his belt? Really? You actually expect us to trust your 'expertise' over his?
I’m a VC? I’ve never launched a tech product? TIL.
It’s possible you are replying to the wrong person? Today seems to be the day where people make up a history for me that I am not familiar with. I was never a VC, and the first time I launched a tech product was a compiler in 1987. Many since.