It is -- well, it -- let me say with respond -- in response to both of those questions, an unlimited time would violate the Copyright Clause. Something that was the functional equivalent of an unlimited time would violate the Copyright Clause, but the Framers specifically did not put in numbers.

Based on that paragraph can we conclude that this sentence is true?
Someone has a clear idea of what the time is for violating the copyright clause.
It's impossible to say