[908B64B197]

6) There are several similar but different societies that shared a common ancestry (with the Romans and Greeks)

This created an intense competition where the best ideas would survive.

As trade grew so did the exchange of ideas in Europe. Different regimes had different views on intellectuals. Famously, Da Vinci and Voltaire had multiple patrons through their lives.

[johnchristopher]

> This created an intense competition where the best ideas would survive.

Claiming they are best because they survive is survivorship bias.

[JumpCrisscross]

> Claiming they are best because they survive is survivorship bias

No, it’s not. Only measuring survivors is survivorship bias.

[johnchristopher]

Which is what's happening here.

[JumpCrisscross]

> Which is what's happening here

Not really. It’s saying increases competitive pressure results in a more-competitive output. That’s almost by definition true. Products of competition tend to be fitter than not. If ten fish of a rainbow of colors are introduced to an environment and only the red ones survive, they are fitter. If one looks at the surviving fish and concludes only red fish were introduced to the environment, that is survivorship bias.