What I haven't figure out is...how? Considering that those sizes don't even include the models, what is actually taking up several gigabytes? How is it so muc

What I haven't figure out is...how? Considering that those sizes don't even include the models, what is actually taking up several gigabytes? How is it so much code? Or is it more than code? I know it includes dependencies, but I'm still baffled.