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The technical details are just that - implementation details. Talk about features & benefits. How you do it is not relevant to a corporate development discussion.
There's no reason to allow that kind of detailed conversation to happen, especially not before figuring out what your stuff is worth to THEM.
They are clearly interested, play your cards carefully. There's very little to gain from oversharing, despite how hard they made try to persuade you otherwise.
Share strategicially. If you've already got credibility and traction and prototypes, demonstrating your competence can be "it works".
250M is a huge number.
Am I to understand this is basically the same, except you've added the ability to follow along in source code? That sounds very very cool.
What capabilities do you have if no source is available?
" And then my phone got hacked, and then my Pavlok started shocking me over and over again. When I tried to remove it, it locked on tighter. 'I'm sorry Dave, I'm afraid you've asked me not to allow that, Dave' "
From your landing page, I can't tell what missing features led you to roll your own.