Disgrace to Nature for click bait. The number system might be clever but as described is not binary numbers.
Especially the claim in the introduction
"Binary arithmetic, the basis of all virtually digital computation today, is usually said to have been invented at the start of the eighteenth century by the German mathematician Gottfried Leibniz."
implying Leibnitz didn't invent binary and equate the existence of 4 numbers (10,20,40,80) which lack the simplicity of 2 states by representing it with KTPV with the invention of the binary number system is sensationalist.
Interesting the quote
“It’s puzzling that anybody would come up with such a solution, especially on a tiny island with a small population,” Bender and Beller say.
It's only puzzling to scientists from "Department of Psychosocial Science" but would not be puzzling to scientists from the "Department of Mathematics".