Is the 500-Day Bitcoin Halving Strategy Really This Simple?

Has anyone here actually tried the 500-day Bitcoin halving strategy?

The idea is simple:

Buy 500 days before a Bitcoin halving

Sell 500 days after the halving

Looking at previous cycles, the returns seem surprisingly strong:

• Cycle 1: 31x

• Cycle 2: 34x

• Cycle 3: 12x

• Cycle 4: 6.4x

No indicators, no active trading, no trying to time tops and bottoms.

If historical patterns continue, the next buy window would start around December 1, 2026.

What am I missing here? Is this one of the most effective long-term Bitcoin strategies, or is it just a case of curve-fitting past data?