Addendum 1: Past financial crises
The history of the financial world is rich in financial crises. As I said, whatever is dangerous or ruinous to some, may represent an opportunity for others. That has always been the case. If you want to become wealthy with stock market speculation, you are well advised to study past financial crises. Here is a list which is certainly not complete. Study these crises! You will then be better equipped to recognize future ones. In addition to the crises, you will also find the possible speculations that you could have traded successfully.
1973: Oil Crisis, long Oil, short Stocks
1973: Banking Crisis United Kingdom: short British Equities
1983: Bank Crisis Israel, short Israeli Stocks
1986 - 1991: Japanese Bubble Industry: short Nikkei, long Yen
1994 - 1995: Tequila Crisis Mexico: short Mexican Peso
1997 - 1998: Asian Crisis, short Indonesian Rupiah, Thai Baht, South Korean Won
1999: Brazil Crisis, short Brazilian Real
1998 - 1999: Russia crisis, short Russian ruble
2001: Turkish crisis: short lira, short shares
2001 - 2002: Argentina Crisis, short Argentine Peso
2000: Dotcom Crisis, short Nasdaq
2007 - 2008: Subprime Crisis, long Gold Silver, short Stocks
2008: Iceland Crisis, short Icelandic Krona
2007 - 2008: Spanish Real Estate Crisis, Short IBEX (Spanish Equities)
2010: Greek sovereign debt crisis, short ATHEX (Greek equities)
2010: Spanish savings bank crisis, short Spanish stocks
2010: Euro crisis, short Euro
2014: Russian financial crisis, short Ruble
2018: Turkish Financial Crisis, short Lira, short Turkish Stocks
As you can see, there is no shortage of crises. Almost every year there is a fire somewhere, from which you can benefit as a speculator.
Incidentally, there are not many different types of crises. Here is a list of the most important types:
banking crises
currency crises
speculative bubbles
sovereign debt crises (a state cannot repay its debt)
economic stagnation and recessions
If you want to deepen your knowledge of financial crises, I can recommend the following books:
Barry Eichengreen: Hall of Mirrors: The Great Depression, the Great Recession, and the Uses-and Misuses-of History, Oxford University Press 2016
Ray Dalio: Big Debt Crises, Bridgewater 2018
Carmen M. Reinhart, Kenneth S. Rogoff: This Time Is Different: Eight Centuries of Financial Folly, Princeton University Press 2009
Robert Z. Aliber, Charles P. Kindleberger: Manias, Panics, and Crashes: A History of Financial Crises, Palgrave Macmillan 2017