In a letter to his friend Lucilius the Roman Stoic philosopher Seneca reflects on how having friends means you are never truly alone. And when you are, communicating with them makes you connected to them. He writes:
I see you, my dear Lucilius, I hear you at this very moment. I feel so very much with you that I wonder whether I shouldn't start writing you notes rather than letters!
Writing a friend notes of events and thoughts and feelings instead of letter. This is how I use twitter. I share these things with my friends and anyone who wants to follow me. A quite futuristic idea for a Roman born over two thousand years ago.