the more prosaic (the bear case) POV is that physically mounted outdoor street cameras have the same enforcement limitations as most other enforcement support technologies. flock isn't really bringing "number of unseen crimes" down from 1 to zero, he's bringing it from like 1000 to 999. a flock being easy to disable by a lay person, and a street corner not having witnesses - they're the same thing, it just isn't as good of a technology as he says (or people imagine) it to be.

so at the very beginning, the thing that threatens him the most is: simple ideas that sound objective and that make Gary Tan wary of putting $50m instead of $25m.

that said, very few things do that, bring "unseen crime" from N to 0. for example, legalization of something does that! he has found a very successful business nonetheless. it's more interesting to explore why. if he wanted to level constructive criticism at Deflock, i suppose we should wonder: how do they disrupt enterprise sales? flock is just, yet another failed IT project. it shouldn't be too hard. obviously, the best thing you can do is getting elected, and simply putting it in the law to not adopt the technology.