The opportunity that truly warrants a significant investment in Bitcoin occurs approximately once every 1410 days.

Looking back at Bitcoin's history, as of now, the monthly oversold signal has only appeared three times:

1. The first time was in 2015, with a price of about $152;

2. The second time appeared in 2019, dropping to about $3,670;

3. The third time occurred in 2022, bottoming out around $18,183.

The intervals between the three occurrences were 1520 days and 1300 days respectively. Based on this cycle, the next similar opportunity is likely to fall between September 2026 and January 2027.