Too much work.
More guns.
None he's still clinging to the old lightbulb.
So they can tell if they are going to work or going home while on the bus.
They work it out with a pencil.
How many data wranglers does it take to change a lightbulb? Just one, but they need a backup.
100; 1 to do it, and 99 to say "I could do that."
He thought nothing could possibly travel faster than sea.
They have the ability to penetrate both holes at the same time. explanation(http://en.m.wikipedia.org/wiki/Double-slitexperiment)