One thing that really set in for me during the financial crash is that for most people wealth gained through markets and real estate is pure freakin' luck (and a healthy dose of experience of course)
When the market crashed on '08 I was still a college student and didn't have a lot of spare cash, but I put everything I had into it when it just happened to hit rock bottom (luck on my part). The way I saw it was either the market would recover and I'd make a ton of cash, or the market would crash and dissolve completely and the US dollar would be worthless anyway, so in my eyes it was a complete win/win scenario. Absolutely no reason NOT to dump all my cash into it. Unfortunately all my cash was only about $5grand.
I decided to pick individual stocks. I looked for companies that were like 100 years old and that were historically very solid and very high. I bought in companies like DOW Chemical which had been around $40 for like 10 years (like 50 years really if you factor in inflation) and was suddenly going for $7! I didn't know anything else about the company at all except it has been a market staple for like 100 years. It was nothing fancy but over decades it has settled on it's true worth, and it definitely wasn't only $7.
Anyway the market obviously corrected and I felt like Dow chemical was back up to it's regular $40 in no time. Today it's at like $54.
Same luck went for my house, I happened to luck into a short sale at the very bottom of the real estate crash. I bought house for $200k that sold for $400k 2 years before I bought it. Today I could sell for $350k easy. It was just luck that I happened to be in the market for a house when the market bottomed out. I actually put 5% down on the house, paid PMI for 6 months then refinanced and the value of the house rose so much that I no longer had to pay PMI. My poor friends and family that bought a house right before the crash out of necessity or who couldn't afford a house until the market recovered too much basically get screwed out of hundreds of thousands of dollars because their luck of timing didn't match mine.
Now I look forward to the next stock market crash and housing crash because I actually have serious money I could invest in it and the experience to make what I believe to be rational choices. Whether or not the market crashes it's a good thing for me at this point, either my current investments and property will go up in value. Or everything will lose its value and I'll be able to buy more at a discount and wait for the value to go back up again. I'm long term though so no worry if it takes a while.