As someone who doesn't look at flight radars often, I'm always surprised by how many planes are flying simultaneously.
Is there an estimation about how many more planes are possible before it gets too crowded?
Is there an estimation about how many more planes are possible before it gets too crowded?
Also, flight radar, especially at the zoomed out views, looks a lot more crowded than it really is, the airplane-icons are huge.
Plus, you can stack them on top of each other at different altitudes.
Outside of that, the sky is a really big place. Not quite big enough that you can completely ignore collision avoidance, but big enough that you can pack in a lot more traffic than we currently do.
(Which reminds me, cycling down the runway at Tempelhof is still on my bucket list. I should go to Berlin this summer...)