True, I'm perhaps naive. I tend to think markets behave linearly (in the sense we're discussing) over long time frames.

This is linear thinking. Value in what sense? Economics or just vibes? 

BlokchainB

If the benefits don't outweigh the costs won't they go out of business and there won't be any benefits or costs?

How efficiently can we manage that growth to ensure the benefits outweigh the costs?

Zion

Fair but usage growing exponentially would mean the value it's providing grew exponentially, so I wouldn't say that's a bad thing with any certainty.