This is the sign for you to go sign up for a CPR course.

It's pretty straight-forward to learn and it's worthwhile.

I'm not sure who this post is for. If you find the advice in the post helpful, then go take a BLS course. The AHA one is very good.

Just reading this post that is essentially suggesting to treat cardiac arrest with Trendelenburg position isn't going to do much even compared to the very low chances of a ROSC even with an AED and quality compressions.

To the extent the advice is to do anything other than go take a short BLS course this post seems almost irresponsible. I don't care who is suggesting it.