1stly, the sarcasm was was stupid.
Secondly, yeah it's normal. If you've got a good wort (sterile and full of sugars) and a good yeast (strong, happy, randy Yeasties) fermentation can be completed in one day.
A hydromiter reading that is consistent over two or three days is the only way to be sure that fermentation is complete. DO NOT RELY ON BUBBLES IN THE AIRLOCK.
-May the Yeast be With You