You do see a tree via sunlight reflected off it. Most (but not all) of the information in what is in your mind’s eye comes from the tree and only a little bit comes from sunlight. Alternatively, you can think of photons as a way to deliver information about the tree to your brain.
Light is necessary for you to see the tree but is not sufficient.
You do see a tree via sunlight reflected off it. Most (but not all) of the information in what is in your mind’s eye comes from the tree and only a little bit comes from sunlight. Alternatively, you can think of photons as a way to deliver information about the tree to your brain.
Light is necessary for you to see the tree but is not sufficient.