I just tweeted about the odd feeling of cramming ideas into my head as fast as I can when eventually my head will no longer exist. This wasn't necessarily as gloomy a thought as some may have assumed.
I have often thought that writing a blog post is like lobbing a pebble into a pond. You are not sure where the ripples will end up but you aspire to getting better at lobbing them and making bigger ripples.
A while back I was chatting with a friend about recent discoveries in neuroscience and got on to the way significant or repeated thoughts have a physical and persistent effect on our synapses. We reckoned that one way to achieve physical immortality would be to make sufficiently significant and replicable dents in enough people's heads - literally!
As we parted he said that my pebbles were rippling in his pond. I reckon this is as much as we can hope for ...