The folks who go after grand challenges are impatient. They're pissed off. They're sick and tired, but in a passionate way. They're driven by a fire in their bellies to make a difference.

During the next 50 years, in countless cycles, in countless entrepreneurial companies, this let's just go and do it mentality will help us finally get off the planet and irreversibly open the space frontier. The capital and tools are finally being placed into the hands of those willing to risk, willing to fail, willing to follow the dreams.

If the risk is fully aligned with your purpose and mission, then it's worth considering.

Eight billion people will have Internet access by 2020.

NASA calls stuff nominal instead of phenomenal, like it really is. So I have given up that there is going to be a balance and NASA is going to do certain things and we are finally in a state of existence where small groups of individuals can do extraordinary things, funded by single people.

At its core, bitcoin is a smart currency, designed by very forward-thinking engineers. It eliminates the need for banks, gets rid of credit card fees, currency exchange fees, money transfer fees, and reduces the need for lawyers in transitions all good things

As lower-cost phones begin to penetrate, they'll become the educator and physician everywhere on the planet.