I would advise you to write, my dear friend, because with your active nature, solitude is simply intolerable to you, and after some time your solitude would become perhaps attractive if you were to people it with creatures of your own fancy.
If bloggers are to improve our public discourse - helping busy and usually uninformed people make sense of the world - it is necessary to use some sort of standard with which to judge their reliability. Perhaps the answer (strictly advisory) is a body of their peers. Perhaps not.
Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it.