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o_O.Q said:
pleaserecycle said:

Faith in what?  The old theory?  The singularity?  I'm sorry if it feels like I'm pressing you... I'm just trying to understand how you're defining faith in this example.  

faith in the sense that singularities are dependent on knowledge that does not exist and they break our current understanding of how physics works

Okay, thank you for your clarification.  The singularity is a mathematical artifact that may or may not physically exist.  In the case of classical mechanics, Newton's Laws allowed objects to accelerate to infinite speeds.   We later realized that the speed of light is a maximum, so the singularity didn't physically exist.  But Newton's Laws are still very valid in the domain of objects traveling at relatively slow speeds (compared to the speed of light) and they're much more practical, so we continue to teach and use them.  The same instance happens with the Big Bang: the singularity appears as a consequence of the mathematical model and we need to conduct further tests to support or debunk its physical existence.  I guarantee you that any reasonable cosmologist (or researcher in general) will not discuss a "faith" or "belief" in an infinitely dense universe or other singularity; they will always assert that this singularity is a result of the currently accepted mathematical model.  

Last edited by pleaserecycle - on 13 January 2018