BTC has always initiated a bear market after a weekly close below the weekly 100 MA. It generally corrects to the weekly 200 MA following initiation of a bear market, although in March 2020, due to a black swan event, it wicked to the weekly 300 MA. For confirmation of a bear market, BTC would need to close a weekly candle below the 100 Weekly MA(currently at 31.7k), and it could be reasonably assumed that it would then correct to the weekly 200 MA(currently at 19.5k)