Anyone working deep in this kind of tech is basically doing a dream job. Despite heavy stress, you get to push the boundaries of your field and work with exciting new tech, and you get paid so well too! … Until the money stops, which it will at any moment when the investors get scared. So, without really even trying to you become dishonest, you start to stretch truth a little, get a little too optimistic in your estimates. “No no please, just one more year of funding, 6 months, and we’ll have world changing results” and then you just need to get an impressive demo together and try to keep kicking that can down the road.