Hm.
Speed Of Light (Vacuum): 300,000,000 meters/sec.
Speed of Sound (dry air, STP): 331.45 meters/sec.
Er, that would make light "just slightly faster" than sound by a factor of just slightly more than 900,000.
What's your definition of "just slightly"?
I wasn't expecting exactly THIS reaction to my sarcastic exaggeration, but if it floats your boat...
Thanks for pointing out my perceptive shortcomings.