Thanks for the interesting article!
There is a formatting typo in this text: "the world economy would be 1086 times" should be 10^86. Same for 1067 in the same paragraph.
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Just as a point of information, the links in the footnotes do not lead to the sources itself but rather to animal-ethics.org.
For me personally, when hovering over the footnote I was confused to always find the same source for all information - just in case you would be open to change the footnotes to the source itself.