If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.

No freedom is absolute.

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Threats of violence

Terroristic threats

Insurrection

What is the reason behind some people wearing trunks instead of speedos when swimming in pools?

False advertising

Revenge porn

Conspiracy

Why does my penis look like a mushroom when it gets big?

Trade secrets

Insider trading

Revealing classified information

Why do I sweat so much after shower?

HIPAA violations

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Perjury

What should I do if I love someone who does not love me?

Freedom of speech does not apply to:

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Fraud

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And much, much more.

Child pornography