Altcoins vs Bitcoin: A four-year showdown. Looking at this data comparison, the performance of Altcoins over the past four years has been truly astonishing. Every time someone promotes a certain altcoin to take off or double in value, it's worth pulling up this chart for reference. Numbers speak for themselves. Bitcoin's resilience always leads, while most Altcoins are vulnerable in a bear market. This doesn't mean Altcoins have no chance, but calmly analyzing historical data is much more rational than blindly following trends. Market cycles are brutal, and choosing the right trading strategy is far more important than being misled by various promises.