Of course it's falsifiable.
Demonstrate, please.
Demonstrate, please.
You know, this seems amusingly analogous to the scene in the seventh Harry Potter novel in which Xenophillius Lovegood asks Hermione to falsify the existence of the Resurrection Stone.
How much money would it take to engineer biological immortality for at least half of the world's population, within 20 years, with 99% confidence?