There's a bunch of graphs showing rents increase, but no real reason for why that's a bad thing. The big number that's supposed to sway us is the rent increasing by 30%, as funding increases by 300%. Maybe there's better numbers somewhere else, but this just tells me rents are not really a problem, at least for the tech industry.
And the solution? It's just build more houses, so the rents go down (a little). Do you really want more houses? The NIMBY people don't seem to. Infinite high density cities aren't all necessarily the best thing. Maybe if you think too much money is disappearing in these wealthy people's vaults, raise taxes?