diff --git a/Position papers/exAI2020_paper_4.pdf b/Position papers/exAI2020_paper_4.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..69abd2e765a444a6619de6c4ccc66bff4a0f14a8
Binary files /dev/null and b/Position papers/exAI2020_paper_4.pdf differ