Let's say you were strolling on the beach looking for nice seashells and came across a set of perfectly intermeshing gears. You looked to the side, and there was also a bolt with a nut screwed onto it. Beside that was a rotary mechanism.
 
You'd conclude the obvious, that some intelligent person made them. And you wouldn't be alone. Any person on the planet would conclude the same.
 
Archeologists and anthropologists finding even crudely chipped stones conclude that such artifacts are the product of intelligence. The Oldowan stone tools found in Africa are an example.

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If that's the obvious conclusion about chipped stones, there could be no other conclusion if we found gears, nuts, bolts, and rotors.
 
Here are gears wired to a neural circuit, muscles, brain, optics, and all of the other paraphernalia found in living creatures. Billions of components all interconnected in a machine that is not just thousands, but millions of years old.

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​This tiny plant hopper insect-machine, one-tenth of an inch long, can bullet skyward faster than the eye can see and accelerate in 2 milliseconds to 400 g's, more than 20 times what the human body can withstand without tearing apart.

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The gears are located in the hip of the Issus and, in 1/300,000th of a second, synchronize the legs for the jump. Unlike kangaroos and us, where neural feedback loops permit coordination of the jump, the Issus' jump occurs faster than the six milliseconds it takes for nerve transmission to and from the brain. Thus, the need to lock the legs with gears so the insect doesn't spiral out of control.
 
It is only in the young molts of the Issus machine that the hip gears are found. In the adult version, another design in its program takes over whereby the gears are gone, and the legs lock together as occurs in other jumping insects. In other words, the Issus has not only one jumping mechanism, but two.
 
Gears, as we know them, were not invented until the genius of the Swiss mathematician Leonhard Euler in the 18th century. So, there must have been genius that invented the Issus gears millions of years before.
 
Bacterial Rotors
 
The bacterium, E. coli, is just one cell, but it contains many machines. A remarkable one that gives it locomotion is the flagellum, a whip-like strand that propels the organism through liquid. To describe this mechanism, terms must be used that are identical to those used by engineers: reversible rotary motor (acid-driven at 20,000 revolutions per minute), flexible coupling, universal joint, propeller, stator, and bushing.
 
Like with gears, humans didn't invent such mechanical elements of machines until the 1800s. Their creation was heralded as genius and gave rise to electric motors, helicopters, and other machines propelling the Industrial Revolution. None of these great accomplishments has ever been attributed to anything other than great intelligence.
 
The same rotor elements existed in bacteria 3.5 billion years ago. Nothing less than great intelligence can account for them.

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Nuts and Bolts
 
Then there's the nuts and bolts in the Trigonopterus oblongus weevil legs. Instead of the ball and socket like we have for our hip-leg joint, the weevil has a bolt-screw on the leg that seats into a nut-thread in the hip. Technically, the coxa is the thread, and the trochanter is the screw.

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This weevil nut-and-bolt mechanism locks the legs and stabilizes the beetle for certain feeding actions when moved to the extreme of the thread in one direction, and then frees up for walking when unscrewed.
 
Nuts and bolts weren't invented and integrated into machines until about 1500 CE. The weevil machine is dated at 100 million years old. If intelligent humans had to invent nuts and bolts, intelligence a hundred million years ago would have been required to invent the beetle's leg machine.
 
No step-by-step biochemical evolutionary progression can be proven. Nor is there even one observed example of any machine anywhere at any time coming into existence spontaneously. (The fact that such machinery comes into existence each time an organism reproduces, is a reflection of the preexisting information and engineering of the parents. That parental engineering and information cannot be proven to arise by spontaneous evolutionary processes.)
 
Keep in mind as you look at these mechanisms, or any other part of any living organism, even a single cell, that they are comprised of trillions of integrated biochemical machine components constantly moving about at blinding speed. It cannot be proven that these components came to be, step-by-step.
 
Biochemical Machines
 
The following diagram represents a snapshot fraction of the dynamics of what goes on in a minuscule bit of living tissue—biochemical gears, nuts, bolts, and rotors within and upon interlinked mechanism after mechanism. No part of which can exist on its own.

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Biochemical knowledge, as reflected in such drawings of chemical pathways, is an incomplete snapshot of present incomplete knowledge and does not reflect the dynamics and speed of what actually happens second by second in living tissue. The trillions of complex machine-like interactions occurring at lightning speed every second for life to happen are incomprehensible.
 
Nevertheless, all such machines and mechanisms are thought by evolutionists to have arisen spontaneously. For example, this is the headline from an article about Issus gears in Scientific American: "Working Gears Evolved in Plant-Hopping Insect" Popular Mechanics states that the Issus "evolved its acrobatic prowess because it needs to flee dangerous situations . . . there's been enormous evolutionary pressure to become faster and faster, and jump further and further away." Similar quotes can be found for the bacterial rotor and for the weevil's nuts and bolts.
 
No detailed genetic or biochemical mechanisms and pathways are provided for how this evolution over time could occur. No fossils are provided showing the incremental development. No experiments. Not even an attempt at actual proof. Instead, there are just statements of faith about how gear, nut, bolt, rotor, and biochemical machines magically appeared because they were needed for evolution.
 
But if someone else says intelligence is responsible, even when intelligent design is clearly written all over life's gears, rotors, nuts, bolts, and millions of other mechanisms, that's supposedly absurd.
 
The Takeaway

1. Gears, rotors, nuts, and bolts require intelligent origin.
2. Organisms have gears, rotors, nuts, and bolts.
3. Therefore, organisms require an intelligent origin.