The sun is really really far away but also you have to take into consideration all the tiny particles in the sky that make the light scatter. If you lived in the Caribbean where the sun is blazing hot all the time and hardly any clouds and the sky is crystal clean and blue, you’d see your shadow is crisp all the time, perfectly sharp and not blurry. Some days when there’s clouds and stuff and you see kinda not so blue skies is when you see the shadows being soft. You can do experiments with the light from the camera in your phone and your hand or any other light source. You’ll see the way things behave in real life is how the software’s in the computer emulate, it’s just that you’ve never payed attention to all of that in real life until now that you’ve had a reason.
