I was trying to follow the did you know video "week 9" where he sends a bang message to all objects of the classes loadbang, loadmess or live.thisdevice with the "universal" object.

When I try the same with 5.1.8 on Mac, I get this message:

loadmess: doesn’t understand "loadmess"
live.thisdevice: doesn’t understand "loadmess"
loadbang: doesn’t understand "loadmess"

in my Max window, and no bangs are shown (or printed).

Here is my try. Can anyone tell me what I might be doing wrong?:

-- Pasted Max  Patch, click to expand. -- 
Copy all of the following text. Then, in Max, select New From Clipboard.
----------begin_max5_patcher----------
470.3oc0VtsTCBCDF9Z3oHStF6zD.o3c9b3zwI.w1nkPmlPsZm9taRHzCJEQ
5A0aHvlMY+2urrvZWGXRwJp.BtC7.vwYsqiiwj1fi8YGXNYU5Lhv3FLoTJK3
Pupo3k4EkxYToYRj0ZkI4ayoU6LLgvm.AisSyxL6TQxy2f7q2o4DY5TFexiK
noxpkED4OXnGH.YFvCqutciTQmw2FbssMtt5Kd+NICpkjwGG9uJYhaIWP33K
btjSEBxDZsFjzUlPCmUPxzR1CnuS6k5N1R5.4TlHitjkR+g.nwjOpdSdpfK4
jbiyv6WvHyZAK3vQZRfhvlgXCjPiNFWv6ECA6cSLPpk1Cbwoupj8WoUWHieq
kFd.HiKqGZhUg8hU12s8iLEOiB+lRnKOprkSmipmfdQDaCBKQtE+WfHUk.mm
FJ98hJ1VM0TY3uMUlSdAHn7Lf.zC3zHXv8qYCZTEKLUMU8ZNNX7u3fojqZ1r
PrSyGhjgM74xSJuCMkBgwmbAgYgpVk7O+ePlfqseHLDEkKRqOPsM.A6BeFUH
Ybhjo9T7Nez+mydNMkkkQ46ykbV17BUKVqF.ia7joqRJnKRBcUkjeGjT7UUQ
QcPQp2MAnqlhvc4X6DXj5gMte3T2ECM
-----------end_max5_patcher-----------