>talks about 1980s Japan bubble and then shows picrel as some of the consequences of central banks flooding economies with cheap money (too much printing/too lax monetary policy).

I.e. Japan central banks kept printing money and people kept borrowing for speculation (till real estate became absolutely ludicrous). Japan's economic growth rate has been dismal since the crash

Then talks about the 1997 Asian financial crisis

Now talks about u.s. stock market being valued at twice the national gdp (i.e. bubble)