本帖最后由 ombenzasatohung 于 30-1-2015 03:09 PM 编辑
什麽是真實?時間嗎?
The self: You think you live in the present? https://www.facebook.com/notes/c ... t/10151307567573456
Our brains create our own version of reality to help us make sense of things. But this means we're living outside time。
It seems obvious that we exist in the present. The past is gone and the future has not yet happened, so where else could we be? But perhaps we should not be so certain. Sensory information reaches us at different speeds, yet appears unified as one moment. Nerve signals need time to be transmitted and time to be processed by the brain. And there are events – such as a light flashing, or someone snapping their fingers – that take less time to occur than our system needs to process them. By the time we become aware of the flash or the finger-snap, it is already history. Our experience of the world resembles a television broadcast with a time lag; conscious perception is not "live". This on its own might not be too much cause for concern, but in the same way the TV time lag makes last-minute censorship possible, our brain, rather than showing us what happened a moment ago, sometimes constructs a present that has never actually happened.
以上都是newscientist雜誌的收費内容,這是facebook有人放出來的。 |