The recommended distribution between the four focus areas of effective altruism is as follows:

Can someone please show me where the scentific reasoning behind this particular distribution is justified in discussions, presentations, or litterature?
Does it follow the logic used here by Benjamin Todd (80.000h) and here by Robert Wiblin (80.000h)? Or is there more to it?
I hope you enjoy your summer!
Kind regards,
Peter
Hi Sam
Thank you so much for your good and thorough answer.
I see from the payout overviews that the actual distribution of donation amounts between the four focus areas the past three years has followed more or less exactly the distribution indication on the sliders. Plus minus one or two percent. Now that the sliders disappear, does that mean that any future donor will not get any EA recommendation on how to balance her donation between the four areas? Or is there a recommended balance somewhere else?
I remember here Steve Pinkers words on the EA website front page:
Effective altruism — efforts that actually help people rather than making you feel good or helping you show off — is one of the great new ideas of the 21st century.
Should EA also help people in finding this hard balance, that tabs into the emerging school of patient longtermism and other academic concepts?
Kind regards, Peter