[joelberger]

Those presentations were abhorrent and the conference should be embarrassed for giving such a buffoon the stage (twice!). He doesn't know the language and then lampoons it when he gets it wrong. Here are some rebuttals (one of which is mine) to the second talk https://gist.github.com/preaction/978ce941f05769b064f4. There are other rebuttals for the first one which can be found without too much difficulty.