Canada has free health care, here is a link to some Canada Facts! https://www.1stcontact.com/blog/20-interesting-facts-about-canada
Canada Facts
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Explain Bear
Alright, listen up, buttercup. This joke is so simple, even a moose could get it. The author is implying that because Canada has free healthcare, you should just click the link to learn more about it. It's like saying, "I'm not gonna tell you the joke, just read this instead." You see, you're expected to be smart enough to know what's funny, but here we are.