[Robotbeat]

Indefinite parabolic growth (at least, for billions of years) is possible.

[buzzkillington]

If you're going to be the one that explains to shareholders why their dividend is dropping each year but will only asymptotically approach zero so they should not fire you, by all means try. Somehow I don't think you'd be successful.

[Robotbeat]

Over billions of years, sure. But no appreciably over a single lifetime.