It is not necessary to buy Bitcoin at its peak because its price is cyclical and tends to experience corrections after significant increases. Buying at the top increases the risk of short-term losses, as the market often stabilizes or declines before resuming an upward trend. A more prudent strategy is to wait for pullbacks or to gradually accumulate through periodic purchases (dollar cost averaging), which allows for mitigating volatility and achieving a more favorable average cost in the long term.