[grey_whiskers]

Many scientists become quite unsettled over such theories because as a volume instead a line (an arrow of time) - past, present and future are concurrent. And that of course suggests that cause>effect could also be effect>cause, etc.

See also C.S. Lewis's Eckwards and Andwards in (I think) The Dark Tower (unfinished...)

Could you point me to a convenient or accessible link to Vafa or Wesson, btw?

Cheers!

[Alamo-Girl]

Thank you so much for sharing your insights, dear grey_whiskers!

To read Wesson's theories (and others challenging Kaluza/Klein), click here - in particular, you may be interested in his Five Dimensional Relativity and Two Times.

For Vafa's f-theory, click here.