Bitcoin's surge seems impulsive for the moment. Don't get too confident (for bulls) or scared (for bears). This is a normal bounce since we bleeded from 12k to 7.2k without retracement. We have many resistances to break before being bullish again. Remember as well (see chart) that these longs will have to close (and thus sell). If BTC 4.30% 4.33% lacks of new buyers, then price will stop rising and will eventually go back down