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What “is” a radio signal-?

Discussion in 'Physical & Life Sciences' started by chuckpeterson, Aug 25, 2018.

  1. FrumiousBandersnatch

    FrumiousBandersnatch Well-Known Member

    +3,676
    Atheist
    Yes; Tegmark's idea is that if reality actually is a mathematical structure, rather than just being described by mathematics, a lot of the 'what is it?' conundrums go away. It also means that every mathematical structure is a reality of some sort (though most will be uninteresting). More complex and interesting mathematical structures will contain many simpler structures, so interesting realities will be a multiplicity of mathematical constructions...

    But it does imply the 4D 'Parminidean block' universe, where past and future are equally real, and the apparent flow of time is just an artefact of sequential 'observer moments'.
     
  2. FrumiousBandersnatch

    FrumiousBandersnatch Well-Known Member

    +3,676
    Atheist
    There's a difference between the concept of mathematics, e.g. mathematical descriptions which are human constructs, and mathematics in its own right, e.g. the mathematics of nature, the way things behave and interact. A parabola exists independently of being named or described by an equation.
     
  3. Dig4truth

    Dig4truth Newbie

    555
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    You are equating the laws of mechanics now with mathematics. Mathematics is the abstract conceptual way to describe the laws of mechanics.
     
  4. Dig4truth

    Dig4truth Newbie

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    We know that stones can roll and gather together. However, that is simply the action that the law of mathematics would describe.

    Once again you are equating a different concept; the law of nature, with mathematics. Mathematics is the abstract conceptual way in which we describe the laws of nature.

    But there could even be another problem with your viewpoint. If the universe changes according to the laws of nature, where or from Whom did those laws come from?
     
  5. Nithavela

    Nithavela lologist

    +9,551
    Germany
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    I think I'm getting bored by being presented with the same fallacy time after time.
     
  6. usexpat97

    usexpat97 kewlness

    +689
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    Sounds like, in order to understand what RF waves are, some people need back up even further and understand what it means to "be".

    In scientific terms, if they can be transmitted and received, then they are observable. And therefore that means they "are".
     
  7. chuckpeterson

    chuckpeterson Active Member Supporter

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    I close this by saying that radio waves, microwaves and the like exist in the fourth dimension, a dimension that exists all around us and yet we can only detect their presence by their movement from one realm to another while we know nothing “of” them.
     
  8. USincognito

    USincognito Do u? Supporter

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    Evolution is established as fact by the evidence and does not "believe" it to be true. One accepts it based on that evidence.
     
  9. chuckpeterson

    chuckpeterson Active Member Supporter

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    post correction: from fourth to fifth dimension
     
  10. chuckpeterson

    chuckpeterson Active Member Supporter

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    Speaking of "time"; I have experienced time travel and most likely you have too
     
  11. Ophiolite

    Ophiolite Recalcitrant Procrastinator

    +3,573
    United Kingdom
    Agnostic
    Private
    My previous post in this thread was intended to be my last one, but I see you asked me some questions and it would be impolite not to answer them.

    You may wish to read what I wrote more carefully. This would help you avoid flawed conclusions. My words were "I tend to doubt the credentials and beliefs of those who note the value of empirical evidence, when they cannot spell empirical."
    Please note: "tend to doubt" is not equivalent to "not worth listening to".

    I make frequent typos. AV picked me up on one the other day. It was a conventional "there" for "their", or "your" for "you're", or some such. Your error was not of that kind. Unless you speak Castilian Spanish, or have an unusual keyboard configuration, I'm not clear how you could spell 'empirical' as 'emphirical'. However, the possibility that it was an error was why I used the word "tend".

    Genuinely excellent credentials for missionary work in Zaire, or pastoral work in Luton, but irrelevant on a science sub-forum.

    Only partly true. The context should have made it clear - and I apologise for not being explicit - that we are talking about a scientific consensus. In a scientific consensus we are not dealing with "a bunch of people", but a group or relevant experts. Further, it has nothing to do with what they believe and everything to do with what they accept, based upon evidence and reasoned argument.

    That would be a silly thing to do, though doubtless there are many silly people who so believe. What any reasonable person should do is to accept that evolutionary theory currently provides the best evidence supported explanation for the diversity of life on this planet and that no other evidence supported explanation is even visible on the horizon. Not only does practically all of academia take this position, but so too do a majority of Christian denominations. If, as a Christian, you have an issue with that you should take it up with fellow Christians.

    It is argued by the majority of your fellow Christians that the Word of God does not say that, so as noted above, speak to them about it. If your God exists, then he wrote rather explicitly in the rocks and in our genes that evolution is true. Do you think he was lying?

    On your misunderstanding of a scientific consensus please see above.

    Nah! You used spellcheck. It would have been funnier if you had slipped in a couple deliberately. (Can you spot mine?)
     
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