chuckles ... well... it obviously didn't work on you then :P

red arrows in thumbnails [...] included two of them in the title image

I initially thought they were in text

Apparently YouTubers do that arrow thing with their thumbnails to make the videos stand out visually in their subscribers' feeds. That aside, I agree that some more visual aid in highlighting important text could have helped a lot. Some more "further reading" at the end of the post is always nice, too... I just don't have too much of a reading list ready for this and the few important "further link" are already in-line in the relevant sections.

Anyways, thanks for the constructive review and a ton for your support!! I'm sure you've met the bunny a few times already. As a #steemSTEM honor member and with a personal recommendation by reaggae you've been on the list since almost the very beginning.