I wonder people still listen to this snake oil seller.
It got half an idea right in the 1990s, but built a bad database system and on top of it a bad messaging system with an ugly UI.
No surprise that as soon SQL RDBMS became affordable, and better tools to build frontends too (Visual Basic, Delphi, then web applications), Notes became something only IBM shops could still think to use.
Than it made Groove, the most mysterious app installed by Office, which almost nobody used. Still it got a high ranking places at MS, just to leave later.
Like the Wizard of Oz(zie), he must be really good at deceiving people.