Chris Hall explains "fusion". It started, in the 1980's, with President Reagan and Premier Gorbachev at the end of the Cold War. in 2026, scientists feel that they may be within eight or nine years of producing cost effective energy from fusion. Nevertheless, don't expect to see it generating electricity until after 2039. When you hear the term think about hydrogen. Also, Hall injects the idea that what we've always known about solids, liquids, and gases didn't include plasma. Now, we're talking about lightening and fire. That's what scientists are striving to harness. Checkout Inter.org for more info.