Great question, and it's one of those metrics that seems confusing at first but is really useful once you understand it. Bitcoin dominance basically shows Bitcoin's market cap as a percentage of the entire crypto market. When dominance is rising (say above 60%), it usually means investors are playing it safe and moving into Bitcoin, often during uncertain times. When it's falling (towards 40-50%), money is flowing into altcoins, which can signal the start of "altcoin season." The key is watching the trend, not daily moves. I found a really clear explanation of
btc dominance that breaks down exactly how to read the charts, what different percentage ranges mean historically, and how to use it for portfolio decisions. Much more useful than just guessing.
