Originally Posted by SomeCreep

Unless one has studied physics, i.e. thermodynamics and fluid dynamics, then it's just not possible to understand how difficult it is working 1 mile underwater. Especially using nothing but robots. Pressure, heat, viscosity, friction, chemical reactions, are all factors that must be considered when dealing with a problem of this nature.

Most people think, "Well just put a lid on it." Wrong! If done incorrectly, that could make the hole 10 times bigger. Or create 10 more holes just as big.