A bull run is a term for a period when crypto prices rise strongly and broadly, often accompanied by growing excitement, media attention, and new participants entering the market. It is essentially an intense phase of a bull market.
During a bull run, optimism can build quickly, and stories of rapid gains tend to spread. This atmosphere can be exciting, but it can also encourage hasty decisions driven by fear of missing out, which is one reason education emphasises staying calm and thinking clearly.
It is worth remembering that bull runs describe the past and present, not the future. Periods of rising prices have historically been followed by sharp declines, and no one can reliably predict when a trend will turn. This entry explains the term; it is not a prediction or a suggestion to act.