Bull Markets and Bear Markets describe long-term trends, not short-term changes. Bull and bear markets are usually measured in years. Basically a bull market is a rising market and a bear market is a declining market.
Byteball is designed to generalize Bitcoin to become a tamper proof storage mechanism for any data, and to remove some of the most pressing deficiencies that impede its wider adoption. With Byteball, there are deterministic criteria for when a transaction is deemed final. Great interview though, quality content.