SP500 could dump to 1800?!?!
Burry shorting 30yr bonds (TBT)? His 3rd bubble which is the biggest? CPI housing prices are wrong (5% vs 12%)? Shiller PE ratio 36 -> 16?? Trading volumes are down??

Personally, my regression line is at SP500 8% level since 1980 which would be 3440. Still quite a steep decline from current levels. Dropping to 1800 would be a -48% from the 3440 which is unpredecented. Since 1980, the worse has been -23% from the 8% line.