Is there any common thread tying FTX, SVB and Big Tech Layoffs?

As others say, interest rates growing are like a U-turn for investments. Silicon Valley is full of non-sense money flowing because money itself was cheap to loan.

There's a global re-alignment of the economy due to the de-globalization of politics.

Politics is just following the feelings of people, who cannot bear the current state of globalization any more: less children, less education, more old people, more bills, more taxes, more bureaucracy, no escape. So they start being protectionists, blame migrants and close the borders.

This is true for all USA, UK, Germany, Italy, Russia and China.

Well, it was very apparent already if you actually have a look at the world's outlook today.

As the other commenter said, interest rates. When the rates are low, money are put in the economy and if there are too much money, people start using them for stupid shit like crypto and overhiring. When the money become too much, interest rates are increased to remove money from the economy and people need to optimize there operations, hence no crypto and firing people. SVB made the additional sin that in a too-much-money economy with almost no profits to make stupid risks for high returns which made them fragile. The fragility was exposed and a few days of HN discussion ensues.

Yes.

Sudden zero interest rates, then sudden high interest rates.

ZIRP was never going to continue forever.