@kazani
Most ideas fail for one reason:
They sound good, but they're not viable.
"Sounds good" is genuinely seductive. It gets heads nodding. It survives meetings, sometimes gets funded. It just doesn't survive contact with people who actually have to use it, who are a much less forgiving audience than a conference room full of people who don't want to be the one who asked the hard question.
Nobody wants to stress-test viability when the idea still feels exciting. There's a window right after something lands where questioning it feels like killing it. So people don't. They work on the pitch instead of the idea. They get attached to a thing they haven't tested.
Then the real world asks one question and the whole thing falls apart in a way that, honestly, an afternoon of uncomfortable thinking could've caught.
The hard skill is staying excited and suspicious at the same time. Being the person who says "but has anyone actually checked if this works?" That person kills the vibe. They're also the only reason anything ships intact.
The ideas that make it aren't usually the ones that killed at the pitch. They're the ones that someone tried to break first and couldn't quite.