As for David.

 

He has a choice to stop this cycle.

 

But he chooses not to.

 

 

I don't understand why the authorities

 

choose to say nothing.

 

 

And I don't understand why I must endure this.

 

 

 

No point. To any of us.

 

 

Improving? Mr Musk. I honestly haven't started. XD

 

If that is what you mean.

 

But the drawback may be, the drill bits must

be replaced frequently. Though it also

 

depends on the composition of the metal cube

that is being curved out.

 

The cheapest is probably iron and aluminum mix.

 

Drill bits, of course, can be recycled and remade...

Rotation speed and its alloy (harder than the

thing being drilled)...

 

From way I see it, it has a lot of flexibility.

As one is working from raw materials.