Matt Mahoney wrote:
On Thu, Mar 7, 2013 at 6:51 AM, Tim Tyler <[email protected]> wrote:
Over the last 40 years, power per square cm of silicon has remained pretty constant while the number of gates and bit operations per second doubled every 1.5 to 2 years. Current feature sizes are about 22 nm or 100 atoms. As features get smaller, power consumption drops. It is unlikely that silicon transistors could be shrunk below 2 nm, which is less than the average distance between the P-type or N-type dopant atoms. Assuming that we could, power consumption might drop by a factor of 100, which is still 4000 times higher than the human brain. Powering 10^10 such computers would require 1000 TW (vs. 18 TW we use now), and would raise the Earth's temperature by 0.5 C.
=( Why are you so fixated with this 10^10 number??? How about you worry about 10^0 or 10^1 first??? -- E T F N H E D E D Powers are not rights. ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
