Today btc is going down and a lot of alts are rising. Do you think it will be a trend also in the next days? I imagined that would happen after the 2x day. Thank you
One day won't really change much as of now. We need to see the data over a much longer period of time to come to any conclusions.
In regards to altcoins taking over, it's possible that one day in the future that bitcoin will not be the preferred currency and some other altcoin will prevail. However, it seems as of now, bitcoin is not only the most accessible for people, but that it is being picked up by companies as being offered for payment. This will push bitcoin's price up as it is being supported both as an investment and a currency.