Yeah I'm glad somebody's talking about it. Wealth inequality seems like it will be THE defining issue of our lives (accelerated drastically by AI).
I think there are many practical ways to solve it, and would love to see more proposals out there. Instead I tend to see nihilism or division.
Inequality isn't a big problem. Those who claim it is seem to think that the existence of really rich people causes the existence of really poor people. That is not the case.
It's natural that things are less equal now that we're not farmers or hunter-gatherers. Economies of scale will massively enrich those who take build them.
Sometimes it is claimed that inequality is a problem because the rich will control politics. But populism is surging and the rich seem to have a harder time controlling politics than ever, largely due to the disintegration of the print/tv media.
Extreme power inequality seems to be the default state of human society. Power concentrates until it's maximally concentrated, then stays there. Power shakeups seem to usually replace one group of elites with another group of smaller or the same size.
Exceptions to this rule come about for specific reasons. Before the industrial revolution, there just wasn't that much power to go around. Everyone was working their land for sustenance, and the rent-seeking nobility extracted some percent of production because that's what there was to extract. When the industrial revolution came, those who figured out how to exploit it became the new nobility and worked their employees to the bone. It was only after actual, bloody, war between the factory owners and the employees that we got labor rights, which were a truce agreement. And that agreement's been steadily declining since Reagan. It took a while because the beneficiaries of the labor rights era were able to hold onto their wealth and pass it down to their children, but now we're back in the same factory feudalism situation again, but with different technological status.
What are these practical ways to solve it? And who do you think will implement them? Especially when Billionaires control the opinions of a big chunk of the population.
My hot take is that wealth inequality is the least bad problem we could have, if it is even a problem at all.
What people are actually experiencing is not wealth inequality, but cost disease. Vital things (housing, healthcare, education) are more expensive - and that's mostly the fault of state action.
A great practical suggestion comes in the recent book: "The Second Estate" by Ray Madoff. It is an excellent analysis of the changes to tax policy in the US that have gotten us here. (Yes, I know this isn't just a US problem, but the US is the most important part.) One key suggestion is just to make transferring money into any trust (any!) a taxable event so that capital gains must be realized.
It sounds trivial but the effect to various tax evasion strategies is very important. It's also something that really ought to be uncontroversial. Read the book!