If you're doing something useful for society, it doesn't have to change the world; even small improvements that benefit many people are valuable.

AI is probably the single biggest factor that will affect humanity in the near term, so it's crucial to ensure its development is positive.

Working on AI and ensuring a great future for it is the most pressing issue right now.

Genetics is the second most important area; solving genetic diseases and preventing conditions like dementia or Alzheimer's would be wonderful.

Creating a high bandwidth interface to the brain is essential, as we currently face limitations in how we connect our digital selves with our brains.