1. the price of Bitcoin will increase very high, because there will be many investors who are interested to investing in Bitcoin, thus making the price of Bitcoin will increase very high
2. many coin whose prices will go down or even those coin will disappear, because no investor will invest in the coin
3. exchange between Bitcoin and altcoin will have a small volume, because investors will definitely be more interested in exchanging Bitcoin with currencies (EUR, CHF, USD, NZD, YEN, and others).
that is my thought if BTC Dominance increased to more than 80%, then what about your opinion?
Thank You.
in my opinion you are right if the price of Bitcoin will definitely increase very high if Bitcoin dominance becomes 80%, but it will not affect for the price of altcoin to go down, because if market cap also increases then I am sure the price of altcoin will also increase very high like the price of Bitcoin, although not all altcoin prices will increase (only altcoin has good product and idea whose prices will increase).