I'm waiting for yours, then...
The borg encounterd 8472 about that time.
Seeing as that went bad fast Im wondering if the Borg did'nt send the sphere back in time to take modern borg tec along with modern fed tec back in time to give the borg a big boost so when they eventualy encounted 8472 they would be 300 more advanced.
I'll take "WTF?" for 300, Alex.