Earth's crust can be broken down into two categories: continental and oceanic
- Continental crust thickness is about 35 km
- Oceanic crust thickness is about 7 km
Thicker Crust?
- Too much oxygen would be transferred to the crust to support life
Thinner Crust?
- This would increase volcanic and tectonic activity to the point of making life untenable
The Earth's crust is engineered precisely to support life!