One thing I can clearly state:
Maps are always out of date.
There’s no map that’s quite complete
Always there’s some unmarked street
And though you find it’s unmarked so
It’s often where you want to go.
Even when the map’s updated
Still you’ll wish that you had waited
For a map that’s newer yet.
So then, if you want to get
The latest info, wait. Instead
Keep a good map in your head.