Currently, due to a lack of clear information about how miners will behave in reality, we are going with a fairly simple approach: a voting system. Miners have the right to set the gas limit for the current block to be within ~0.0975% (1/1024) of the gas limit of the last block, and so the resulting gas limit should be the median of miners' preferences. The hope is that in the future we will be able to soft-fork this into a more precise algorithm.
Hi, what could be the problem when I get?
I'm expecting it to return ['Solidity'] instead of 
solcfrom the command line and it works
I'm trying to follow the "greeter" tutorial.