[dang]

You've crossed into incivility in this thread and broken the HN guidelines by calling names. That's not ok, regardless of how wrong someone else is. Indeed, assuming your position is correct, it's important not to discredit it by commenting like this.

Would you mind reading the site guidelines and following them scrupulously when commenting here? We're trying for a better outcome than scorched earth followed by heat death, which seems to be the default for internet forums.

https://news.ycombinator.com/newsguidelines.html

[mkempe]

Ok.

My father worked with Piaget, so I lack tolerance for someone who deliberately spreads lies about Piaget's work.

[dang]

I can certainly understand that. Still, patient correction is probably a better way to honour him.

[mkempe]

Thank you, that's a helpful perspective.