3 ms·

I made the average some time ago for a successful domain name and its 6.5

• dangrsmind 20y ago
  This one is probably related to the well known property of human short term memory which states that we can remember about 7 plus or minus one things. This is the reason that phone numbers are seven digits for example.
  • aristus 20y ago
    Err, no and no. That was a hypothesis from the 50's that has since been invalidated, and many (most?) places in the world do not have 7-digit phone numbers. Memory is "chunky". For instance, you can easily remember phone numbers in your same area code even though they probably have 10 or 11 digits.