Because of its properties.
It's made from plastics and other non-naturally occuring materials.
It has inscriptions on it like numbers, codes and "made it china".
It has brand markings.
It shows signs of manufacturing like soldering.
Everything about it pretty much screams "human made".
The intricate parts are all put together in a very ordered, or systematic way.
You left out the most important part:
custom way.
Indicated it was manufactored / forged by some agent, as opposed to
formed / evolved through, or under the influence of, the laws of nature.
The other question is, does my circuit board work?
That doesn't matter.
A non-working one would bear all the same marks of manufacturing / custom processing.
Heck, an abstract sculpture that serves no purpose other then to stand in a corner as decoration, would still bear marks of manufacturing, like carving.
The purpose/function of an object is of no importance when the goal is determining if it is custom made or naturally formed.
Well, if I put it into the computer for which it was designed, all the ports when connected, should fire up my machine.
Why? Because each connected component on my circuit board was specifically designed 1) according to a plan, 2) with specific requirements, 3) intended for reaching a specific purpose, or goal.
Sure, that is the case for such components.
It is not the case for an abstract art sculpture.
It has no relevancy to it being designed or not.
A "natural process which literally results in natural design"?
Yes...
Please explain what natural design is.
Patterns and processes that emerge as a direct result of the laws of nature affecting matter.
The human brain contains, it is believed, at least about 10¹¹ neurons, and possibly
more than 125 trillion synapses (or points of contact with other nerve cells.) just in the cerebral cortex alone (according to one source).
However, another source says...
The number of synapses in the brain is known much less precisely, but is probably about 10¹⁴. For instance Human-memory.net reports 10¹⁴-10¹⁵ (100 – 1000 trillion) synapses in the brain, with no citation or explanation. Wikipedia says the brain contains 100 billion neurons, with 7,000 synaptic connections each, for 7 x 10¹⁴ synapses in total, but this seems possibly in error.
Another way of saying, we don't know, but astounding.
According to
this article though, they are really stretching assumptions.
So we'll bring it down to 50 trillion... to be fair.
Let's just make it a billion trillion and go with that.
Consider that the brain is our circuit board.
Why? It is nothing like it.
Are these components intricate, put together in a systematic way, according to plan, with specific requirements, intended for reaching specific purpose, or goals?
I agree up until "in a systematic way". The rest can't be deduced from the mere observation of the structure. And that "rest", eventhough you mentioned multiple things, is really just one thing:
pre-planned intention.
How did you concluded that it was
intentionally put together?
You are infusion agency into it without any reason, without any evidence.
It is no more then an assumed conclusion.
Having said that, the question you ask, is not how one distinguishes natural objects from manufactured / designed ones.
When plugged into the machine, our body, does the brain work?
You can't exactly "unplug" a brain.
A brain isn't "plugged in".
Consider...
The brain has to coordinate the movement of some 100 muscles in your tongue, throat, lips, jaw, and chest. All those muscles have to move according to precise timing if the words are to be understood. Regarding the ability to speak languages, a study published in 2019 showed that newborn babies can pick out individual words.
This finding reinforces what many researchers believe - that we are born with the ability to recognize and learn languages.
That's just one area of the "machine".
If we were to zero in on the tongue alone, there is still
a lot of unknowns, but with the brain, human can taste hundreds of different flavors, and can sense every object, even the tiniest bone, on the tongue... all with the connected "circuit board" - our brain.
Your argument from awe, that you reinforce with an equivocation fallacy and an assumed conclusion, is noted.
If that is not enough evidence of a designer
It isn't evidence of anything, except perhaps that much still remains to be learned about the brain.
You have given exactly 0 evidence for the idea of brains being designed / manufactured with intent by an external agent.
- as it is obvious our bodies give evidence of design - requiring a designer
Natural design does not require a "designer". Natural designs are produced by natural processes, governed by the laws of nature..
, then I see no need to provide further evidence, as great as it is.
You have given not evidence at all.
Describing how a brain works and saying "we don't know how this or that works" 50 times, doesn't constitute evidence for an external agent that designs brains with intention. You haven't even begun to address the origins of brains. All you did was cite a few factoids while falsely equivocating it to a human made product while completely ignoring the MANY ways in which they are different. While it is exactly those differences that make one a custom object and the other a natural one.
Please explain how the above bear the signs of evolution.
Natural design? Let's see that.
This is nice.
Although I know that's not what you have in mind. Let's see what you have.
1. we know from the fossil record that brain sizes in a lineage vary over time. The brain size of the human lineage has nearly trippled over the past 7 million years
2. we have extant examples from extremely rudimentary brains all the way up to large complex ones
3. we know that brain building is determined and regulated through genetics, pretty much like all the other parts of our body
4. we know of specific mutations that induce changes in brain size.
5. the brain bears no signs of manufacturing
All the evidence points to brains being a natural occurrence.
