I think the territory deinal and threat projection of heavy armour will be very difficult to replace. Armour may evolve like all other arms, but I think it will stay with us for a while still.
Sidenote, I was'nt aware that the S-tank was that dedicated to defense. Almost hard to believe anyone...
I've seen the S-tank demonstrated (I'm ex-navy) and I don't think the benefits of a low profile will weigh up the slow aim. Particularly so when opposing a fast and mobile enemy. Syre, you can't hit what you cant see, but thermal imaging must surely be able to pick up the heat from a big diesel...
When I use PP or other visual aids, I make a basic presentation containing only the main arguements, drawings and images of the presentation. If you give ppl something to read during your presentation, they read it, so keep slides simple. The rest I am able to improvise during the presentation...