there's no need to understand it, as being healthy well after being alive for hundreds of years would incentivize a lot of people to do more with their life than clutching their academic pearls.
even if not, the aphorism is not a necessity. scientific progress is a very soft thing anyway in most fields (medicine for example), and just because nowadays when the old guard dies off a new paradigm takes over doesn't necessarily mean that were the old guard alive there wouldn't be paradigm shifts!
simply accumulating the necessary data to convincingly be able to claim that the new model is better takes decades ... which conveniently coincidences with some old dog dying.
sure, likely if the old guard would be alive for a few more decades maybe they would insist on even more convincing data.
but that would at least help us to have better science!
and no one is prohibited from exploring applications of the new models before they became de facto dogma!
... and so on.
most of the time progress is limited by methods (data collection, precision - repeatability, and of course replicability), but those are usually limited by engineering, culture, funding, etc.
see the whole story with Alzheimer's and the first mouse model problem, and the failed clinical trials of various treatments, and ... despite all this how still we have no better idea, despite decades of effort!
even if not, the aphorism is not a necessity. scientific progress is a very soft thing anyway in most fields (medicine for example), and just because nowadays when the old guard dies off a new paradigm takes over doesn't necessarily mean that were the old guard alive there wouldn't be paradigm shifts!
simply accumulating the necessary data to convincingly be able to claim that the new model is better takes decades ... which conveniently coincidences with some old dog dying.
sure, likely if the old guard would be alive for a few more decades maybe they would insist on even more convincing data.
but that would at least help us to have better science!
and no one is prohibited from exploring applications of the new models before they became de facto dogma!
... and so on.
most of the time progress is limited by methods (data collection, precision - repeatability, and of course replicability), but those are usually limited by engineering, culture, funding, etc.
see the whole story with Alzheimer's and the first mouse model problem, and the failed clinical trials of various treatments, and ... despite all this how still we have no better idea, despite decades of effort!
https://www.astralcodexten.com/p/in-defense-of-the-amyloid-h...
https://www.astralcodexten.com/p/your-review-of-mice-mechani...