Correction

In my post "From the bottom up", I stated that it is illegal for an aircraft to land anywhere in the U.S. in 0-0 conditions. That was written in regards to light aircraft in general aviation. Large commercial jets are often certified to land in 0-0 conditions if the autopilot and other equipment meet certain standards. Thank you Dave for alerting me of this.

And for future reference, I believe that most of my answers will be referring to general aviation and light aircraft, similar to what I currently fly.

Thank you everyone for reading.