good discussion.
Wanted to add a couple things:
lake nona has been around since the 80s (well before Baldwin park, Avalon park, universal studios, and a huge convention center were in Orlando). Yes, the growth in medical city is newer (but some is well over a decade old though)
Institutions such as two university medical campuses and five different independent medical groups are permanent and not going anywhere. Some of these are federally and state funded, and the growth is happening around them. Places like horizon west or Windermere will simply never have the cluster that lake Nona does.
and an aeropolis is a pretty real (and urban) type of development.