My understanding is that the great filter theory means this is bad news for us humans here on earth. And considering the state of the world right now, it's especially ominous. Fate loves irony.
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That being said, I agree. I read in a similar thread yesterday someone confused how this would be bad news rather than good news—that there are many other intelligent species indicates that such a filter either doesn't exist or is very easy to pass. But, like your point does, I think it's important to recognize that such a "good news" position is predicated on the notion that we as a species are already past the Great Filter, rather than that we're still behind it and the others are ahead.