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
First, I'll note that we're actually planning to change this system (likely in the next week or two), so that instead of first seeing a default allocation, donors will choose their own allocation as the first step in the donation process.
To your question, the current EA Funds default allocation was chosen as an approximation of some combination of a) a representative split of the cause areas based on their relative interest across EA, and b) a guess at what we thought the underlying funding gaps in each cause area will likely to be. It's definitely intended to be approximate, and is there partly as a guide to give an indication of how the slider allocation system works, rather than an allocation that we think everyone should choose.
Context: I help run EA Funds and am responsible for the user-facing side of things, including the website
Interesting. Thank you very much.