The question "how much thicker is the far side of crust?" is a bit ambiguous. It's likely you are asking about the Earth's crust. If that's the case, there's no such thing as a "far side" of the Earth's crust.

Here's why:

* The Earth's crust is a continuous layer: It completely surrounds the Earth, making it a single, continuous shell. There is no "far side" in the sense of a distinct opposite.

* Crust thickness varies: The Earth's crust is not uniform in thickness. It is much thinner under the oceans (oceanic crust) compared to the land (continental crust).

* Continental crust is thicker: Continental crust is typically 30-70 kilometers thick, while oceanic crust is only 5-10 kilometers thick.

Therefore, the term "far side of crust" doesn't have a meaningful interpretation in the context of the Earth's structure.

If you have another question about the Earth's crust, please feel free to ask!