Part 9/12:

Conversely, a genetic analysis pinning LUCA (the Last Universal Common Ancestor) back to 4.2 billion years robustly supports the argument for early life, further boosting support for the idea of easy abiogenesis to a ratio of 13 to one. Consequently, this evidence reinforces the notion that life’s emergence on Earth was not merely a chance occurrence.

## Potential for Habitable Life on Earth