Talk:Tutorials/Block update detector

I created this page because I felt this information was lacking from the wiki. There is much more info on the topic. Please help expand this page. Smickles 01:22, 23 August 2011 (UTC)

What is a BUD Switch? An introduction paragraph would help, explaining what one is. --HexZyle 19:14, 23 August 2011 (UTC)

Tree growth
In response to this edit: http://www.minecraftwiki.net/index.php?title=Tutorials/Block_update_detector&curid=16349&diff=134098&oldid=134095

BUDs detect tree growth, at least both of the piston-based do. The water-based surely does not, and I don't know for sure why.

Cored's publishing of the discovery
I feel like this should link to the video, rather than the reddit post. Am I wrong here?