note also, mr Musk,

 

Mars is empty of civilization, buildings.

 

 

Imagine what a bipedal humanoid robot can do,

 

walking about leveling out mineral deposits.

 

Mountains and what not.

 

 

Provided there is no physical contact between

the bot and the object, so it would last longer.

 

Too many sophisticated components,

I doubt a bipedal robot is built for 'digging' for instance.

 

If however, nucleared powered and shooting lasers from its hand,

 

 

that usage amplifies, scales, to the point of effective terraformation,

 

and collection of minerals if used correctly (with other devices).

 

 

But is it easy to balance a robot standing tall as a skyscraper?

 

I think you already know the answer to that Mr Musk......