[stavros]

How have you disproved the hypothesis that it recently got dumber and it just happens to be summer?

[AbstractH24]

Clearly, it compared performance to last summer

(Just to be clear, I have no idea what on this thread to take seriously and not and who is. I'm joking at least.)

[stavros]

That won't do it, though, you'd have to observe it being dumber on June 1 and smart again on September 1 for years.