In 28 Days Later, why did they select the value 28 and not any other? Is this number something special or did they just choose it randomly?
I could not find a solid answer but I did find a good hypothesis. This is from Yahoo Answers and was put forth by a user named "methroach". Here is his/her take on the reason the number 28 was chosen:
- It just has a nice ring to it--it's an even number, and it comes out to 4 weeks, or roughly a month.
- It's a time period that is just long enough to make the level of devastation and the evacuation believable. Too early, and Jim wakes up with (possibly) some people still around. Too late, and people might question why he (and the other few survivors) aren't dead. The timing is important; the first scene when he's walking around the empty streets is effective and creepy.
Also, how long can one stay in a coma without being attended to, before problems arise?
Here is the link to the Yahoo Answers page.