1. In the very beginning, where they show Jack tied up in the chair, and Tyler’s at the window, Jack says, “I knew this because Tyler knew this.”

2. Flashes of Tyler at the copy machine at Jack’s work, at the hospital, at the testicular cancer meeting, and after the meeting with Marla, shows that Tyler is present in Jack’s life at all times, and he is finally merging as another side of Jack.

3. In the hospital when Jack’s asks if he can die from insomnia. He says, “What about narcolepsy? I nod off, I wake up in strange places, I have no idea how I got there.”

4. In the airport, Jack asks, “If you wake up at a different time, in a different place, could you wake up as a different person?”

5. On the airplane with Tyler, Jack notices that they have the same exact briefcase.

6. Right after Jack called Tyler, Tyler *69’d him back. You can’t *69 someone if you have a rotary phone.

7. Paper Street is always the fake street they put on blue prints.

8. In the bar, Tyler mentions, “your sofa units and string green stripe patterns.” Of all the couch designs in the world, why does he mention the exact same one that Jack has?

9. In the tub, Tyler comments about Jack’s Dad saying that he’s, “fucking setting up franchises.” What does Tyler do with Fight Club? Yep, sets up franchises.

10. When Jack is getting stitches, he says, “Sometimes Tyler spoke for me.”

11. When Tyler was going to tell Jack about the Marla Suicide story, Jack says, “I already knew the story before he told it to me.”

12. When Tyler goes to see Marla, she asks him, “Did I call you?” If you see the look on her face, you know she is being playful, being fully aware she is looking at Jack.

13. After the suicide night, Marla comes downstairs and sees Jack. Jack, perplexed as to why she was there, asks her what she was doing there. She was extremely offended, acting like he invited her there, then kicked her out.

14. As Jack passes Tyler’s door while he is having sex with Marla, he asks Jack, “You wanna finish her off?” Right afterward, Marla asks Tyler, “Who are you talking to?”

15. Since when did Jack start smoking?

16. While on the phone with the commissioner he says, “I am Jack’s cold sweat.” Meaning he was nervous, because he knows deep down that he blew up his own condo.

17. Still while on the phone with the commissioner, Tyler rambles on about some very important information. “Tell him. Tell him the liberator who destroyed my property has realigned my perception... Reject the basic assumption of civilization, especially the importance of material possessions... Just tell him you fucking did it. Tell him you blew it all up! That’s what he wants to hear.”

18. On the wall behind Jack when he meets up with Bob, it reads, “I Like Myself.”

19. Right after one of their sex sessions, Marla comes downstairs, Jack says, “Except for their humping, Tyler and Marla were never in the same room.” If all three of them were ever in the same room together, it would be complete chaos, that is why Marla is a key in the relationship between Tyler and Jack, and also why Jack can never talk about Tyler to Marla.

20. In the office, when Jack’s boss finds the Rules Of Fight Club, Jack says, “Tyler’s words coming out of my mouth.”

21. While beating himself up in his boss’s office, he says, “For some reason, I thought of my first fight with Tyler.”

22. In the car right before the crash, Tyler says to Jack, “You need to forget about what you know, that’s your problem. Forget what you think you know about life, about friendship, and especially about you and me.”

23. Also in the car, as well as throughout Project Mayhem, the space monkeys never respond to Tyler, they seem to be ignoring him, at least while Jack is around.

24. After the crash, notice that Tyler pulls Jack out of the driver’s side of the car.

25. Towards the end when Jack goes to all the places Tyler has been he repeats, “Was I asleep? Have I slept?” He adds, “Was Tyler my bad dream or am I Tyler’s?”

26. Finally one of the last clues is when Jack says, “I was living in a state of perpetual deja vu. Everywhere I went I felt I’d already been there. It was like following an invisible man.”