Ethereum has been trading publicly for a very long time now, close to 7 years now. Ever since it's inception, ETH has been dominantly trading bullish, apart from two instances.
Both when the token started trading publicly and during the last bear-market ETH saw a huge devaluation.
When we connect these two troughs we can clearly deduce a bullish ascending supporting trend line. And, as of this week, we're trading right on this massive support area. If the bulls wish to prove anything, it has to be very soon.
Be aware that it's possible for ETH to trade lower from here, we saw wicks reaching below this support line before.