# do we live in 3.5 dimension? [closed]

After watching interstellar movie i came to know that time is 4th dimension and watch some videos and read articles which says there is there is around 10 dimension(11 also).

As x,y,z are 3 dimension which can have value in positive or negative. Considering the time is 4th dimension but in our real world we can measure time in only positive value.

my questions:

1.do we live in 3.5 dimension?(as time is only positive)

2.parallel world is 6th dimension?

3.singularity and black hole are the same?

## closed as unclear what you're asking by Kyle Kanos, Gert, HDE 226868, user36790, Frédéric GrosshansDec 17 '15 at 10:59

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• and what about the $\pi$-th dimension? – glS Dec 16 '15 at 21:19
• $t_\text{yesterday}<0$ (time can be negative) – AccidentalFourierTransform Dec 16 '15 at 21:40
• I've run into people who think the Universe is only 6000 years old, but I think this is the first time I've run into someone who thinks it was created right now. – WillO Dec 16 '15 at 21:52
• @WillO: en.wikipedia.org/wiki/… – J-T Dec 16 '15 at 22:01
• It is currently $-100\,{\rm min}$ from midnight gmt on Dec 16. – Kyle Kanos Dec 16 '15 at 22:12