No again that analogy reflects the "old school" thinking.

It's NOT "two lanes", it's TWO MULTILANE HIGHWAYS instead.

The lane can be blocked with no ill effect what-so-ever.

You just cannot block the entire highway with a broadband emmision... something that is quite hard to do...

e.g. "Distributed Spread Spectrum radio can be likened to a multi-lane freeway where your car seems to appear at random in different lanes"