Glad you get it now babe! That hurt users do they be paying the price for your preference!

Why would I have to link Duolingo? Why would I need to link the resource you claim to have been using for a long time that you pretended to know more than? No it's not disingenuous to expect you to do the absolute smallest amount of work of going to a website you're familiar with to inform yourself on something you're opinionated on. That's something you should have done before making things up and pushing them heavily online.

We're not talking about obscure studies. We're talking about the Duolingo site you already know about.

You're right. They're guided. That's literally why I said my opinion would change if more information was discovered. Using it as a guide doesn't mean ignoring it and just supporting the exact opposite thing for no supported reason. I'm using them as guides. It sends Duolingo is as well since they willingly change their courses based on new information.