I mean technically the sentence structure says that:
Fact: NASA has done something
That something: potentially discovering that we are in a black hole
So in a sense there is no contradiction there with the words "fact" and "potentially". Although there is a relevant possibility for confusion of what is being stated as a fact, so your point stands. I just like nitpicking on technicalities :D
Well techically " the square root" seems to imply that we are looking for just one answer, and since the positive one is called "the principal square root", the correct answer would be "I have a boyfriend", since it is a positive sentence as opposed to "I don't have a boyfriend", which is a negative sentence.
Also "Maatta" is a different word in Finnish with its own meaning: "without a country" or "without a land", while "Määttä" does not have this meaning. I agree that the aeae makes it horrible to read, though. Another athlete whose name has some ä's that make the it difficult to read when turned into ae's is Mäkäräinen which then becomes Maekaeraeinen :D
Grond