The starting point of the sharp collapse in the US stock market is likely to come from Nvidia's earnings report at 5 AM on Thursday, combined with concerns about Cicitrini's AI essay regarding the future market. There is a paradox here:
If Nvidia's performance exceeds expectations, then the fear of AI impacting the business financial expectations of other software (computer industry) companies will cause the index to plummet, just like the day before.
If Nvidia's performance is below expectations, it will directly crash the market.
$BTC and the Nasdaq index have a positive correlation. Most of the large holders of BTC and ETH are from the computer industry. To supplement cash flow and funds, selling risk assets is their first choice.

Geopolitical factors will depend on what results can be achieved on Thursday night (daytime in Switzerland). We will wait and see, and adapt accordingly.