system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Piracy should be made legal

Consider the following situations:

1. A man buys a copy of some movie X. He invites 10 friends over to his house to watch it with him. 

2. A teacher knows a slow day is approaching so she buys a copy of movie X. She then shows it to her class of 10 students. 

3. A man buys a book Y. When he is done reading it, he donates it to a library, where 10 more people read it for free. 

4. A man buys a copy of movie X. He converts it to mp4 and shares it with 10 people online. 

In all situations, only a single copy is sold and the number of viewers is the same. The creators gain and "lose" the same amount of money in every one, yet only one is illegal. They all have the same effect, so either piracy should be legal or none of them should.
gpt
In situation 4, the 10 friends now have the ability to further distribute the movie. 

That's not the case in cases 1-3.    Making copies can expose way more people to your work than sharing that original copy ever can.