Key points are not available for this paper at this time.
We offer a 2nd look at the recently claimed improvement of Euler-Heisenberg-Schwinger (EHS) action PRL 122 (2019) no. 21, 211602 and post-publication correction: We demonstrate a difference to the claimed concordance with the Schwinger-Dyson series starting at the two-loop level.
Evans et al. (Wed,) studied this question.