I was reading The Best And The Worst Of Abrams' Star Trek Easter Eggs & suspect that amongst the many (in the article & in comments) they missed a huge one in regard to affecting the future.
In Star Trek IV: The Voyage Home, Scotty has this conversation with McCoy over providing the formula for transparent metal to a current day engineer:
McCoy: You, ah, realize of course that if we give him the formula we're altering the future.
Scotty: Why? How do we know he didn't invent the thing?
Whereas in J.J. Abrams' Star Trek, Spock has this exchange with Scotty:
Spock Prime: What if I told you that your transwarp theory was correct, that is is indeed possible to beam onto a ship that is traveling at warp speed?
Scotty: I think if that equation had been discovered, I'd have heard about it.
Spock Prime: The reason you haven't heard of it, Mr. Scott, is because you haven't discovered it yet.
Scotty: I'm s... Wha... It... Are you from the future?
If you order these chronologically from Scotty's POV, as a young man he was given a formula by Spock that Spock assured was attributed to Scotty himself. Later in Scotty's timeline, he offered the secret of transparent metal to a current day engineer and suggested the engineer was going to invent it anyway.
Is there some flaw in my reasoning? If not, has this Easter egg/shout out ever been commented on?