You want to work with people you are excited about and they are excited about you. It's a two-way street.
I would draw a really big distinction between competition, or potential competition, and a conflict of interest. A conflict of interest implies wrongdoing, whereas competition is really healthy.
I'm interested in the ideas that sound a little crazy, such as radical life extension, curing cancer, being able to create a simulation of the human brain and map every neuron.
As computer intelligence gets better, what will be possible when we interface our brains with computers? It might sound scary, but early evidence suggests otherwise: interfacing brains with machines can be helpful in treating traumatic brain injury, repairing spinal cord damage, and countless other applications.
When you build relationships with entrepreneurs, they're not trying to optimize on price.
We have this powerful lever at Google Ventures, which is to invest $200 million a year. This is a huge lever. It's not all going into one place; it's going into lots of start ups and founders and entrepreneurs, all of which are levers to try and change the world in one way or another.