To admit that physical reality is finally tuned in a scientific context is simply to say that some physical values cannot easily be explained or cannot be explained at all in reference to an antecedent physical cause
That is a scientific argument. You use science to make that determination - on observable evidence. You rule out a cause by physical laws. Along with that, the features being observed show evidence of having been designed by intelligence.
Let’s take a look again at an example I offered on this thread over 600 posts ago:
Physicist Leonard Susskind: If, for some unforeseen reason, the [multiverse] turns out to be inconsistent – maybe for mathematical reasons, or because it disagrees with observation – I am pretty sure that physicists will go on searching for natural explanations of the world. But I have to say that if that happens, as things stand now we will be in a very awkward position.
Without any explanation of nature’s fine-tunings we will be hard pressed to answer the ID critics. One might argue that the hope that a mathematically unique solution will emerge is as faith-based as ID.
Even the atheist Susskind recognizes that fine-tuning demands an explanation. It supports the inference that ID is correct – that there is evidence of Intelligent Design in nature.
Again, this is not philosophical proof. It’s evidence that supports a proposal. Susskind has his own proposal – that there are an infinite number of universes, and therefore the fine-tuning we see is inevitable as the result of chance occurrences among a vast number of universes.
So, it’s a question of which is more reasonable … and also, that Intelligent Design must be at the very least, one possible answer for fine-tuning.
Again, this is scientific evidence that leads to an inference.