Iron Dome and the illusion of security

According to media reports there have been 300 rockets launched into Israel in the past four days.

According to media reports 56 of them have been stopped by Iron Dome.

What's wrong with this picture?

It typically requires two anti-missile missiles to intercept one incoming. If 56 were shot down that would require 112 anti-missile missiles.

The cost of an anti-missile missile is a matter of conjecture. Estimates range from $100,000 to one million US. These missiles will eventually bankrupt Israel even it they never hit anything.

What used to happen with Gaza missiles before Iron Dome?

Mostly they fell into the Negev and blew up some sand.

But now hundreds of millions of dollars are to be spent to counter this threat. In fact, Netanyahu has promised dozens more Iron Dome batteries.

The Iron Dome system is a re-named American Patriot anti-missile system. Perhaps there have been improvements made since the American system proved a dismal failure in the first Gulf war.

Perhaps not.

What is known is that if a "real" war were to break out, the Iron Dome would be up against far more sophisticated stuff than what's flying out of Gaza these days.

If Iron Dome is scoring 56/300 against the Gaza Grads, what will it do when a real war breaks out?