Fees support 500Thash

[nibor]

From blockchain.info fees now up to $20k per day (https://blockchain.info/charts/transaction-fees-usd).
So this is $7.3m per year.

A 50 Ghash BFL single is $2500 and uses about 250 watts (0.25Kwatts).
Power in cheap places costs $0.1 per KWh.
So power costs you about 0.25*24*365*0.1=$219 per year.
Depreciation over 5 years is 2500/5 = $500 per year.

So network can support $7,300,000 / (500+219) = 10,153 BFL 50 Ghash singles.

This is a total hash rate of: 507 THash.

This is the hash rate the network had in September of this year. But only 1/10th of the current hashrate.

[7Priest7]

In a ideal world, yes.

In reality, not a chance.

Of those 500THashs only some will get paid.
They won't be giving their pay to others.
In all probability the pools will always get most the blocks, those in the pools get paid.
Eventually solo mining will become impossible due to the overwhelming power of the pools.