For a lot of things the problem is essentially a problem of scale. Those "ancient human tribes" who did so much better were tribes of 100-200 people, and it's actually not that hard to "do the right thing" with a relatively small group of people. Blaming it on the two-party system is such a short-sighted US-centric point of view. There are plenty of countries with other types of democracies, and they have roughly sim…
I don't think he was blaming it on the two-party system. He was just explaining how the two-party system is one of those obviously broken mechanisms that effectively blocks against replacing it with one of the better alternatives. The general category of issues he highlights, should be well known to people who have lived in and observed our real world and society for a while. It is possible to produce USB-C cables th…
You could have FPTP but with more than two parties, like the UK does. The downside of this is that the reason there are more than two major parties in the UK is that the parties are much more closed off to outside influence, and due to the presence of a major independence movement (something banned by the Constitution). In the USA it's considered entirely normal and possible for complete outsiders to run in party primaries, take over that party and then become President. This cannot happen in the UK because none of the parties have open primaries. Small movements towards more internal party democracy by Labour have been rolled back in recent years, because they allowed in non-centrist types like Corbyn who were popular with the base but not with the electorate. Still, it could be implemented in the USA. "All" you need to do is end the system of party primaries and voting for President, to allow party insiders to select their own leadership. And if you want a big independence party then change the Constitution to allow cessation.
You could have PR, like most of Europe does. Then you'd have lots of parties. The downside of this is that it guarantees that politicians can never actually do any of the things they campaigned on doing, with the result that politicians tend not to take policy development seriously. Parties end up standing for extremely vague positions even during election campaign periods, knowing that there's no point in having specific ideas as they'll all be mashed up in coalition negotiations anyway. Because the system is in some sense inherently unstable you have a lot of government collapses, and the promised benefits of representing everyone's views better doesn't happen in reality. Instead what happens is that every party just ends up being at a different point on the 1D ideological spectrum, and all the left and "center" parties form coalitions against the right wing party to deny them any representation at all, even if it means the government becomes deadlocked and can't do anything.
Overall the US system isn't perfect, but it's also not the great weakness Americans like to claim it is. The two parties are sufficiently loose and broad tents that they shift with the political winds easily, and it means Americans are able to go in an "fix" the parties if they drift too far from what is actually wanted. A big part of the meltdown over Trump is that the party insiders were reminded of this against their will. A big part of the meltdown over Sanders vs Clinton was that Americans actually like this aspect of the system and the left felt it was being denied to them.