Johannes' fine graph seems to me to show that, over time, Debian tends to depend on more packages.

I suppose it may suggest increasing code complexity and effort to maintain.

For what it's worth, I also tried to quantify how robust Debian is my measuring the ages of packages installed on my main computer.

My results are at

http://morse.kiwi.nz/kingsley/lib/exe/detail.php?id=technolo...

There's evidence in the scientific literature that we already know how to slow aging.

Hundreds of leads are summarized in the histogram at http://morse.kiwi.nz/kingsley/lib/exe/fetch.php?cache=&media...

The May 22 paper by Hashizume et al suggests glycine[1].

I took the liberty of data mining my big spread sheet of life span experiments[2] for it.

It turns out that it was reported in 2011 that adding glycine to the diet of lab animals let them live 28% longer[3].

A ton of other cool experiments have already been done[2].

References

[1] Epigenetic regulation of the nuclear-coded GCAT and SHMT2 genes confers human age-associated mitochondrial respiration defects, Nature, May 22, 2015, Hashizume et al. http://www.nature.com/srep/2015/150522/srep10434/full/srep10...

[2] The World's Biggest Spread Sheet of Life Span Experiments http://morse.kiwi.nz/kingsley/doku.php?id=science:kingsleys_... http://morse.kiwi.nz/kingsley/lib/exe/fetch.php?media=:scien...

[3] The FASEB Journal. 2011;25:528.2, Dietary glycine supplementation mimics lifespan extension by dietary methionine restriction in Fisher 344 rats, Brind et al. http://www.fasebj.org/cgi/content/meeting_abstract/25/1_Meet...

So where do I get high quality glycine? Seriously. :-)

It would be great to stay young.

I'm happy to report that scientists have been seriously testing if stuff actually works for over a century (Slonaker, 1912).

They typically try an intervention, like diet or exercise, on lab animals, and then see how long they live.

For what it's worth, I maintain the world's biggest spread sheet of these life span experiments.

It summarizes over 14,000.

One column is the intervention (diet, exercise, etc..) another is the change in lifespan (+10%, -2%, etc...) another is the species (human, mice, etc...) and so on.

It's interesting to see what works.

More info is at

http://morse.kiwi.nz/kingsley/doku.php?id=science:start

You want $1,000,000 to get the report of life span experiments?

Also he has stripped electromagnetic waves to just get magnetic waves and he doesn't know about man-made climate change because of correlations.

Whoa, he should submit his results to Nature!