“The battle between oligarchic forces and democratic forces is the battle of the 21st century.” On Downstream, French economist @Gabriel_Zucman explains that billionaires save almost 100% of their income – so their wealth grows faster than everyone else. “If we don’t break that spiral, we’re going to see more wealth at the top and more concentration of power,” he explains. A century ago, the world invented progressive income taxation. Now, Zucman argues, we need progressive wealth taxation. Watch the full conversation between Zucman and @AaronBastani on our YouTube.