Well apparently a month around 30 days is a magic number. The same doomsday prediction is also predicted for the US economy and in how many days?? What d'u know? Also 30 day!! LOL And the same Youtuber that predicted China's collapse of the economy in 34 days: Also posted a video about US' economy collapsing: So this is just video trolling with clickbaits. Inflation is high, so people are desperate to pick up some extra bucks.
Let me speculate since I am far away from China. It happened in Japan(1991 asset bubble) and US(2008 mortgage crisis) and now China? There are plenty of ghost city videos on youtube. I suppose there are certain truth to it. Looking back to Chinese history, they have closed door policy not once but multiple times.