He didn't tell her the rest. He didn't tell her he was almost sure that, the way things would have been, Lorene and Ken would have been married and Edigo would have been their descendant.
But Edigo had changed all that when he sold Jack a drug that Jack used, to make sure that Ken wouldn't marry Lorene, but that he would instead. And since Ken and Lorene wouldn't be married now, Edigo would never be born, and would never have the idea of building a fifty-story building at that spot, starting it by digging a basement.
So that was what happened to the suit and Ken's car and the television set. Since the basement wasn't to be built there, they wouldn't be, so they weren't—they never had been.
The strange thing about it was that Jack remembered it all, and even stranger, he was still married to Lorene, and he wouldn't have been except for the drug. But then that had to be, because if he hadn't married her, she'd have married Ken—and then the basement would have been, and he'd have gotten the drug, and Ken wouldn't have married Lorene because Jack would have, and then there wouldn't have been any basement....
Jack sighed. He was happy that the circle stopped where it did.