So, our goal is to replace all fossil fuels. There’s 30 times more solar available, worldwide, over land and high solar locations than we’d need to power the entire world for all purposes in 2030. And there’s seven times more wind than you’d need to do the same thing. So we’re looking to combine all clean renewable energy sources that are available: Wind, Solar Power, Geothermal Power, Hydro-electric, Tidal Power, and Wave Power. We would need about 4 million large wind turbines to power about 50% of the entire world for all purposes. You might say, “Well, that sounds like a lot!” But keep in mind, during World War II, the world produced about 800,000 aircraft in the space of 5 – 6 years. And the US produced about 330,000 aircraft in 4-5 years. That was decades ago. Now, we have better technologies and abilities to ramp up production. So, it really comes down to will-power. It’s not a technological or economic blockade to solving this problem. It’s really a social and political blockade.