How does the computer know what to block? Do I need to provide a hotspot to my TV or Chromecast from my laptop, for example?

It’s just language, they don’t mean he sat down and coded it. He and his team hired someone to do it, just like his websites.

Ive got curly hair so cant reccomend brushing like some of the others here. If you have wavy/curly hair look for advice on that.

Specifically, look into the curly girl method.