Some good advice, but be careful with how the final word will be interpreted:<p>> <i>You should prove to the other party that this is happening and the train is departing. They can have a ticket to the ride if they join you right now.</i><p>"Prove" will be interpreted as "persuade", so...<p>Sounds like advising the hypothetical startup CEO that they don't need the technical co-founder, that it's all about the CEO, that even the rest of the founding team is just disposable commodities, riding the CEO's glorious coattails. (This kind of thinking isn't unusual.)<p>Or advising the startup CEO to be a BS-ing salesperson towards their own co-founders, considering that the CEO's magical success is actually far from certain, but you're advising them to fake that till they make that. Even fake it towards the people with whom it should be in the CEO's interest to be most honest, so they can solve problems together effectively. Unless the CEO thinks those people would never deal with the CEO, if they knew the truth of what they actually brought to the table. (This also happens.)<p>But if you just want an <i>untrustworthy</i> technical cofounder, then the above interpretations are fine, since maybe being pathological is good self-defense, in that particular team.