You have to find things that are accessible and doable in your busy life and try to fit some time in your schedule to just have time to yourself and be able to recoup and refocus.
It is a very naive view to think that the resources and conditions on earth would last forever. Our race has to take necessary steps to be able to develop the technology necessary to live on other planets and moons and to reach to farther corners of the galaxy.
One of the things that really gets me excited and makes me start up companies is the fact that you can basically build something new, try to introduce a change in a way that people are used to doing certain activities, and basically create something out of scratch that doesn't exist and would revolutionize whatever it is that you are trying to do with it. So that's part of the reason I love being able to be a technologist.
Being an entrepreneur I love to help people, and I think through the products that we develop in my company, we will be able to help a lot of people. Whether it's help them to get over the difficulties of a technology and use it. Or helping employees, creating new jobs, new opportunities for people that work in my company.