"Something like a London fog" it has been called, "only a dust fog," – an animated fog in which everything unsubstantial is fair prey.
Even before the protests, female political power and representation in Mubarak's Egypt was unsubstantial and token at best.
To say that Colbert's testimony was surprisingly unsubstantial, if funny, would be unfair, because it would imply we expected celebrity testimony before congress to be anything other than unsubstantial.
There's nothing like emotional substance, even in an ostensibly unsubstantial thriller.
Funny that a video about information literacy includes such an unsubstantial claim.