To me, that is.
From what reading I've done on the subject, not extensive or minimal to say... they seemed linked.
If the Cure for C is found first, infinite or extreamly extended lifespans will come directly after, or vice versa.
A -Small- example at how they are linked, quote from Scientific American "ES {embroytic} stem cells cannot be used in stem cell therapy, unlike adult stem cells, because they cause cancer."
Or if we look at the cancer cell itself. Normal cells can only multiply a certain number of times, cancer breaks this rule. The cells keep deviding to form tumours. Something ... free radicals, radiation etc causes this 'damage' to a certain cell, damaging the genes and wrecking the rules of multiplication.
Immortality is gonna rely on genetic engineering essentially. The tools for trying to cure cancer and adding or knocking out genes to achieve immortality are the same if not similar.
My bet is their advent will occur within 3 years or less of each other.
What do you think, or how did I go wrong? [lol]