IVhorseman wrote:Natalya wrote:They need massive amounts of labour and raw materials with a mining and resource refining infrastructure capable of supplying the operation. Also, skilled welders and stuff.
Which is still a lower bill than a massive robot with the highest technology possible. It's all of that PLUS the super-duper extra skilled labor, PLUS expensive robot parts
I really think you're underestimating just how much coastline the wall would need to cover. We're talking about most likely MILLIONS of pounds of steel.