There are only three scenarios which a technical product demo is appropriate for introducing your product. One, you are a student turning it in to the professor for grading. Two, you are at a hackathon. Three, you are at the final stage of the sales cycle, where the big guy has already said "yes".
If everyone is making money in the ecosystem, then who is losing money? In fact, most projects out there are simply the game of the greater fool - it's alright to be a fool, you just need to bring along a greater fool to recoup your losses.
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