What in the universe? Does it matter? :-)

[Guest guest]

Just wondered what peoples thoughts were on the theory of dark matter

and dark energy that currently is accepted as explaining the

universe? and yet there is no conclusive proof (but then is it

possible to have conclusive proof of anything - really?), because as

of yet they haven't been able to detect this elusive dark matter.

Is it just a convenient theory that just happens to fit?

Without it then the universe just does not make sense and Newtons

laws without dark matter and dark energy must be incorrect?

It also ties in with the big bang theory - I am a little sketchy on

the big bang theory - what caused it? - if there was nothing before,

how can something come from nothing? If anyone understands the big

bang theory please try and explain.

Also it has been observed that our universe is speeding and expanding

(I believe) - which is no surprise to me :-) for some reason - but

like will it slow down? - will it get faster? where is it heading?

when will it hit the brick wall :-)

Also where does string theory fit in with all this? Or doesn't it?

Thoughts? - ideas? theories? anyone? Do you agree with any of it?,

some of it? none of it?

I am as ever confused :-)