Four inventions of bitcoin, EACH of which is so profoundly revolutionary that its impact and value cannot be calculated:

1. Absolute scarcity: The first and only substance of finite quantity

2. The only asset that can be jointly-owned by multiple parties without any supervising authority

3. The only asset that can be independently possessed and spent by machines/AI

4. Immutable, time-stamped historical record of any data type (not just financial transactions!)