My favorite is that in the same vein, Aristarchus estimated the size of the sun to be much larger than the earth (although he still severely underestimated it because it’s so hard to measure), and therefore proposed that the earth should orbit around the sun. And the main problem with his theory was not any religious objection, but rather that his model would imply that there should be parallax visible among the stars. Unless they are, you know, ridiculously far away.

I would guess that it has to do with making it easier to parse. The indents won’t matter very much, but the parser sees "physical = " and knows that a property named physical is being defined. What is the value of that property? Well, there’s a “{”, so the value is an object. And the value of that object is everything up until the matching “}”. If you have a structure more like panel 1, then it’s harder for the parser to know when the value of orange.physical is complete. There might be a [orange.physical.texture] section somewhere, for example.