> we don't let the target of their lies speak anywhere
Speaking of "lies": not inviting him to a private event != not letting him speak "anywhere". (Furthermore, this response came 9 minutes after mine, and carries a quote I immediately edited and cited evidence for. While fuming about the Lambdaconf sponsor author's attempt to "hurt" Neil Degrasse Tyson, I was momentarily careless.)
> signed this scientific consensus about the bell curve
If you'll excuse me, I do not have any interest in debating The Bell Curve (I believe about race & IQ?) with people who rapidly show up to support obvious racists and write stuff like: (https://news.ycombinator.com/item?id=10945507)