Domino effect of failing banks, role of inflation, and critique of Austrian economics

More or less. Have a look here for more on this. (In particular, this one and this one. The first one is a short summary. The second one is just excellent. I highly recommend taking the time to view it.)

For one thing, “excessive leverage” and overinvestment are two sides of the same coin…the inflation coin. (And of course by “inflation”, I mean inflation. Read what Mises had to say about how the word has been perverted.)

For a brief summary of how the current crisis went down, see here. For more info, see here.

I’m not sure what you mean by this. Ultimately the culprit of tulipmania was increases in the money supply.

I guess you could say that. It really depends on how you’re defining “fad”.

She is wrong. This is nothing more than a central planning argument that is somewhat in line with chartalism or Modern Monetary Theory. For more on this, see here, and here. (There are links provided in those threads as well.) Basically the notion is nonsense. It essentially says that an economy can be micromanaged into prosperity. Central planning doesn’t work, it has never worked, and until someone gets supernatural powers that allows him to know what people want better than they do themselves, it will never work.

As opposed to what? How would malinvestment in historical times be different?

I don’t know what you mean by this.

One is saying “the people in control of the money supply are stealing from everyone else, and as if that weren’t bad enough, the distortive effects it creates will lead to catastrophic consequences.” The other says “I’m jealous because other people have more stuff than I do. They should have less.”

Because they’re afraid of losing it. The only reason people made such bad bets during the boom was because they didn’t see a downside. Depending on which gambler we’re talking about, either they were under the impression their investment was more sound than it was (because the market was giving false signals thanks to government intervention and money creation), or they were under the impression it didn’t matter because the government had their back (again, thanks to government intervention and regulation).

I think you might be getting a bit lost in the terms “malinvestment” and “overinvestment”. Pay attention to this video and it will help you understand greatly.