If you have ever attended a symphony concert, you will
remember the orchestra tuning up at the beginning. The individual instruments
are already kept in perfect condition, but they have to be tuned to each other.
The first violin plays a chord and everybody else tunes to it. If this
important step were neglected, the orchestra wouldn’t sound as good.
Our universe is fine tuned to a much greater degree than any
orchestra. Constants, such as gravity, magnetic force, speed of light and many
others, have to be tuned to an amazing degree or life on earth would not be
possible.
For example if the gravitational constant was a bit
stronger, by a value of 1 divided by 10 with 60 zeroes after it (an extremely
small fraction) the big bang would have pulled all atoms together into a big
crunch. If it was weaker by a similar amount, it would have spread the atoms
out so widely that they never would have gathered into stars and galaxies.
The other constants of nature possess this same feature.
Change any of them, and the resulting universe becomes very different. And
remarkably, every one of these different values leads to a universe without
life in it.
Which makes us ask the question, Is this universe the result
of chance? It is much more reasonable to see this as evidence for the existence
of a designer.
Imagine you lived on the edge of town, with a large vacant
paddock next door, and you went away for a few years. When you returned, you saw several new houses,
one house under construction and foundations for others. There were frames
stacked up, and trenches for plumbing. Would you say this was randomly produced
by blind chance, or evidence for a designer and a builder? The evidence for
design in our universe is much stronger than for the construction of a new
housing estate.
The fine tuning argument may be new to you. I recommend you
look at a short video online.
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