I thought of something strange recently. Yes, even strange for me.
Imagine you’re a photon. Through the miracle of science, you are created and shot out of the sun into space. It’s unimaginably vast, but you are out there and moving at the speed of yourself. After a couple of minutes of zooming through space, you see a rock in the distance. You can’t tell for sure, but your current trajectory seems to be heading in its direction. A couple of minutes later, the rock is getting bigger, and you’re pretty sure that’s where your path is taking you. Aside from debris and gasses and such, there really isn’t much else to see, so it’s pretty exciting that you’re well on your way to a major player in the solar system.
Eight full minutes elapse since you left the sun, and that rock is now big, beautiful, and only seconds away. You see giant water formations, lush grasses, majestic mountains, and more. Where are you going to make contact? The excitement builds as you plow through some atmospheric layers and keep hurling closer and closer. You’re arriving! You’re suddenly less than a second away from reaching that rock you saw millions of miles ago, the culmination of your journey and your entire life as a photon.
And then you hit the shoulder of some middle-aged dude walking from his car to Trader Joe’s, and your only legacy is being part of a fleeting shadow that literally nobody noticed.
93 million miles. Nearly 500 billion feet. After getting 99.999999998% of the way to your destination, the plan is thwarted and you’re left just shy of reaching that rock you saw on your 8 minute and 20 second journey of light speed travel.
That’s what I thought of when I contemplated my shadow recently: dashing the dreams of untold photons simply by being in their way at the last possible fraction of a second. I told you it was a strange thought.