"Elixir of Life" Possible?

New evidence shows that life longevity may be in reach. Scientists believe that rapamycin, an antifungal agent once found on the South Pacific island not capable of being manufactured in a lab may have life-extending properties.
Rapamycin was discovered in the 1970s and is used now to help prevent the rejection of organs during transplant procedures. Rapamycin blocks the activity of an enzyme called TOR which regulates cell metabolism, cell growth and protein manufacture in response to environmental cues.
Recently scientist have reformulated this drug in order to test it on aging mice. The results were that the males life expectancy increased 28% and females 38%. The mice were given the drug when they were 20 months in age which compares to 60 years old in human years. This give opportunity to treat elderly aging patients rather than having a life-long drug plan.
Known prior was that the drug did work on yeast, worms, and flies however, this is the first successful test on a mammal. More research and testing of the drug could provide us with the first life longevity pill and maybe even give us more of a chance to cure other illnesses.

In my opinion this is a very interesting discovery. My feelings are split about this compound and it new use. On my hand I think that it is definitely something to look more into and hopefully gather knowledge from to hopefully help cure many current and future diseases. On the other hand, if the pill is a success and becomes affordable for all there might be a crisis in our future.
What if too many people are living longer? Will resources run out? Will space? I would also like to think that if people get to live longer and those former do apply that with current advances in technology that more elaborate advances would develop and outer spacing living, new sources of energy, and many more would develop.
Being the slightly factual and scientific person I am, I would like to see this compound perfected and would like to be alive to see the outcome or development of its happening.

Also check out:
BBC-Elixir of Life
or
Telegraph-Elixir of Life