Humans are like #bitcoin nodes ... Millions of other species each with their own #blockchain ..
We are all trying to decrypt a tiny #block to add to respective blockchains - aka #history ...
We can choose if we want to put a bigger chunk in history but success almost always comes if you choose a VERY VERY SMALL set of transactions .. solve tiniest piece of problem that is useful to every other being of your race .. like a wheel , or Fire , or Sliced Bread :-)
Focus on REWARD - NOT on Txn Fees !