From my practice: when a person inspired by ideas comes to you, he is elated and does not see the need to check the market.
If he has already had setbacks or there is a skeptic in the team, then he was lucky) most likely he will somehow check the market and the niche where he wants to launch his product.
If he has already had setbacks or there is a skeptic in the team, then he was lucky) most likely he will somehow check the market and the niche where he wants to launch his product.