Something I could never do

It's easy to watch road cycling on TV and wonder if, actually, it's all that difficult to do. Simply turning the pedals isn't all that tough and when you're in a bunch that big it makes flying along at 40kph a breeze. 

Plus, how steep can the Tourmalet really be?

Then you see something like this. And you realise there are some things on a bike you will never be able to do. Respect!