Insight regarding Richard?

It appears as though repeated trips through the island's "EM Bubble" cause travelers to "lose time".  Sayid, for example, now lives in a world several hours older while he's only aged several minutes.  Has Richard in effect halted his aging by frequently traveling from-and-to the island?

Richard

Yeah, I was thinking that, too...

So you are not advocating any kind of immortality on the island?  (just to be clear...)

Ethan, also, traveled to and fro - perhaps just for Juliet, though...

Re: Richard

Well, yeah, presumably Ben travels back and forth a lot also, but... who knows?

No, I've never really liked the "immortal Richard" idea.  I was the one who suggested that maybe the man we see greeting young Ben was actually Richard's father.