What happens in the Tesseract in interstellar?

Related questions

1. What's a interstellar?
2. What is a white hole in space?
3. What is beyond the universe?
4. Is intergalactic travel possible?
5. Did the Dust Bowl kill anyone?
6. Where is the closest wormhole to Earth?
7. Does fourth dimension exist?
8. What percent of Selma was black?
9. What caused the dust in interstellar?
10. Can we go back in time?

Tags

1. #boundary
2. #event
3. #tesseract
4. #hypercube
5. #escape
6. #interstellar
7. #light
8. #geometry
9. #horizon
10. #which
11. #through
12. #black
13. #after
14. #enter
15. #dimensional
16. #square
17. #passing
18. #where
19. #gargantua
20. #version