Well, that's how it turned out. Go look at an S&P 500 chart -- we have had two already since then (if you include 2020's blip) that were nowhere nearly as bad as 2008. (I have no idea where you're getting 2007 from). Considering 2008 levels hadn't been reached since The Great Depression, that is not such a hot take that the next one(s) would be simmered down versions, nor would we hit one as bad for decades. But we don't exactly speak the same language so, not weird that we don't always understand each other.
Having said that, believe it or not, the market generally does learn it's lessons. I don't think there will be any recession caused the same way the 2008 crisis happened. New and inventive ways? Definitely. The closest repeat of history I can think of is the AI bubble (if it turns out to be one) compared to the .com bubble, but even then it feels we're far less retarded about AI as we were about the internet in general in 2000.
Anyway, to sum up, I generally assuming "bad shit will happen" every 10 years or so and it will reflect on the economy, and I tell young people as such. Just in my adult life, we had .com bubble / 2001 -> 2008 crisis which bled into the earthquake / tsunami -> covid money which gave us the fucked 2022, 2023 market. I do not subscribe to the Chicken Littles (that are rampant tech circles) that say the stock market will drop 80%, but the three aforementioned events fisted me in the ass.
10 years from what exactly? And, what people are saying this? And why should anyone fucking care? People say shit about the market all the time, and collectively they're only right about 50% of the time. Literally a coin toss. Go read Robert Kiyosaki's many tweets about how awful everything "is going to be" (and he's sold books on the topic). Then calculate all the money you would have lost had you listened to him.
Who is saying this? People I know most definitely are not. Dick heads on the right, sure, but they're not exactly in my social cricles.We have a sitting president that's 35% of the way to being a fascist dictator after only a couple of months, and they're doing the This Is Fine dog thing. Perhaps... things will not be fine???