I wouldn’t give it very high chance of success, maybe 10-20% of proving something which increases human lifespan by at least 15 years
Those numbers sound not just very high, but practically stratospheric! Seems like it could have orders of magnitude worse odds than that and still be a great donation target.
Those numbers sound not just very high, but practically stratospheric! Seems like it could have orders of magnitude worse odds than that and still be a great donation target.