It’s really neat to see one going the opposite direction, puts into perspective how fast you’re actually going

For everyone searching, it’s the small outline on the top middleish, a little to the right.

No it’s not the outline of clouds through the sky that looks like a Jet, it’s tiny

I was so close once I could see a person in the other plane with their mouth hanging open in shock. They had the same view from me. I have been on hundreds of flights and never been so close. they were flying opposite direction so they were gone before I could get the attention of my seat mate.

Planeception

Can we truly confirm that this isn't a spec on the window