I'm kind of get it what Soros quote about the bubble theory.
a bubble is an overheated market in which there are too many buyers who are too keen to buy. As a result, prices rise way too fast, and this situation becomes unsustainable. Eventually, some people realize this and start to sell out. The whole process goes into reverse equally rapidly, and the bubble bursts, with people selling in panic so that prices plunge. Those who entered the market late in the process suffer substantial losses in particular.
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