| ▲ | Retr0id 7 hours ago | |
The retina can't tell the difference between reflected light and emitted light | ||
| ▲ | 7 hours ago | parent | next [-] | |
| [deleted] | ||
| ▲ | cwillu 6 hours ago | parent | prev [-] | |
Unless you're in the habit of reading your books with a flashlight, the context makes it very different. | ||