There's even cheaper electricity

I just took a look, and currently, the price of Bitcoin is basically the cost price of many mining machines. According to the US hosting electricity price, the best mining machines S21/T21 have a daily gross profit of less than 2 dollars, while the S19 series has reached the shutdown price. The last time this happened was during last year's 8-month period when Bitcoin was at 60,000 dollars each, basically jumping around the shutdown prices of mainstream mining machines. In retrospect, this was when a significant bottom was formed. So what about this time???