How to Live Safely in a Science Fictional Universe

Life is, to some extent, an extended dialogue with your future self about how exactly you are going to let yourself down over the coming years.

You want to tell a story? Grow a heart. Grow two. Now, with the second heart, smash the first one into bits. Gross, right? A bloody pulpy liquid mess. Look at it, try to make sense of it. Realize you can't. Because there is no sense. Ask your computer to print out a list of every lie you have ever told. Ask yourself how much of the universe you have ever really seen. Look in the mirror. Are you sure you're you? Are you sure you didn't slip out of yourself in the middle of the night, and someone else slipped into you, without you or you or any of you even noticing.

Failure is easy to measure. Failure is an event. Harder to measure is insignificance. A nonevent. Insignificance creeps, it dawns, it gives you hope, then delusion, then one day, when you’re not looking, it’s there, at your front door, on your desk, in the mirror, or not, not any of that, it’s the lack of all that. One day, when you are looking, it’s not looking, no one is. You lie in your bed and realize that if you don’t get out of bed and into the world today, it is very likely no one will even notice.

When it happens, this is what happens: I shoot myself. 
Not, you know, my self self. I shoot my future self. He steps out of a time machine, introduces himself as Charles Yu. What else am I supposed to do? I kill him. I kill my own future.

This is what I say: I've got good news and bad news. The good news is, you don't have to worry, you can't change the past. The bad news is, you don't have to worry, no matter how hard you try, you can't change the past...The universe just doesn't put up with that. We aren't important enough. No one is. Even in our own lives. We're not strong enough, willful enough, skilled enough in chronodiegetic manipulation to be able to just accidentally change the entire course of anything, even ourselves.

Time is a machine: it will convert your pain into experience. Raw data will be compiled, will be translated into a more comprehensible language. The individual events of your life will be transmuted into another substance called memory and in the mechanism something will be lost and you will never be able to reverse it, you will never again have the original moment back in its uncategorized, unprocessed state. It will force you to move on and you will not have a choice in the matter.

Time isn't an orderly stream. Time isn't a placid lake recording each of our ripples. Time is viscous. Time is a massive flow. It is a self-healing substance, which is to say, almost everything will be lost. We're too slight, to inconsequential, despite all of our thrashing and swimming and waving our arms about. Time is an ocean of inertia, drowning out the small vibrations, absorbing the slosh and churn, the foam and wash, and we're up here, flapping and slapping and just generally spazzing out, and sure, there's a little splashing on the surface, but that doesn't even register in the depths, in the powerful undercurrents miles below us, taking us wherever they are taking us.