Forget about anything magical about 400. ETH/USD could easily test the low 380's without any technical damage being done. A bounce at 380 would lend solid credence to today's breakout. Look at the red line in the chart and this should serve as support if we fall through the 400 level that SOME might perceive as an important level. My opinion? Nothing particularly important about 400.00 at all. If 400 holds, that would be great. If 400 folds, look to the red line for a show of the validity of today's move about that trend line. Remember, the implied MINIMUM target is over 1000.00 USD.