How did Cooper get into the Tesseract?

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Tags

1. #future
2. #murphy
3. #bedroom
4. #cooper
5. #interstellar
6. #solved
7. #finds
8. #whole
9. #planets
10. #close
11. #humans
12. #wormhole
13. #allowed
14. #known
15. #himself
16. #equation
17. #habitable
18. #leading
19. #tesseract
20. #gravity
21. #place
22. #first