Imagine that an evil billionaire decided to make Ethereum hard to use by making the gas very high. I'm wondering how expensive this would be to do for various timescales.
For example, manipulating the average gas price over a single minute might be pretty easy. How much would it cost to bring the average gas price up 100%?
Manipulating the average gas price by the same amount over a whole day would probably cost more. How much more?
Probably the answer depends on how many other people are submitting transactions as well. How to characterize this dependency?