My point is that it isn't an engineering problem because it is the best engineered method and that if you think you could "engineer" it better, please let me know.
Any breathing and eating system where it isn't possible to choke on food and die, is better then a system where that is a very real possibility.
At this point, all you are doing is making a point without a suggested better-engineered way of doing it thus making your point mute.
I don't need to be able to do better myself to understand what outcome would be better and / or to be able to identify flaws or weaknesses in existing systems.
And like I said before, if you crash driving 150 mph on a sharp curve, it isn't an engineering problem. If you swallow a big piece of meat without chewing and then choke, it isn't an engineering problem. Quite simple IMV.
You think people only choke on food when they "abuse" the eating tube?
Really?
Your reasoning on these issues is so simple-minded and short-sighted, that it is crossing over into the pure juvenile.
No, it's not. It's what you made of it. Are you really simply going to double down on your strawman, even after I clarified it?
You said that the brain grew (evolution) but the mouth didn't.
No. I said that the brain grow and that this increase in volume required compensation elsewhere. To accommodate for that extra volume, the mouth became smaller.
More often then not, evolutionary change is a tradeoff.
For example if a mutation increases bone density by increasing its calcium levels... that extra calcium would have to come from somewhere. It doesn't magically appear. Either the creature is going to have to increase its intake of calcium by changing its diet, or other parts of the body are going to have less calcium available.
And if the benefits outweigh the losses or extra effort, then the net outcome will be beneficial.
The net outcome of brain expansion and as a tradeoff the mouth getting smaller, was beneficial for our species.
An engineering problem by your world-view of evolution
Not a worldview.
especially if you admit that there are design flaws.
These aren't "flaws".
A "flaw" is when things don't work like
intended. There are not intentions in biology.
There is only what happens to work and what doesn't.
Again... I don't agree with your position that bipedalism is bad for the back.
First, that's not what I said.
I said that our spine isn't entire fit for bipedalism, which is the reason why it causes lower back pains in the majority of humans later in life. The root cause of this, is because it's a spine that evolved to walk on all fours which was then modified by gradual tinkering to accommodate for bipedalism.
A spine build from the ground up for bipedalism, would not have such problems.
This, again, is not a "flaw". It's an evolutionary remnant. It's the baggage of our ancestors.
It doesn't prevent us from surviving till breeding age, it doesn't prevent us from breeding and it doesn't prevent women from giving birth. So it's not a problem that is going to be weeded out by natural selection.
It's something we humans simply are going to have to live with.
Bad posture, no exercise, too much sitting down, bad eating habits, abuse to the body... I believe these are the problems that affect the back.
All irrelevant to the point being made. Lower backpains in a majority of humans simply as a result of living bipedal lives is an inescapable consequence of the very nature of our spine.
Regardless of posture, exercise, etc.
Are you saying that the things I mentioned don't affect the back?
Off course not.
I'm saying they are irrelevant to the point I'm making.
I can behave in such a way that it destroys my knees or elbows as well. But we aren't talking about that.
We are instead talking about inevitable problems that WILL occur in a majority of people
regardless of how they behave at some point in their life, simply because the spine is shaped like it is. In all humans.
It doesn't matter who you are and what you do.
Take any group of people that behave a certain way.
A % of them will encounter back problems.
And yes, in some groups those % will be higher then in others, obviously.
But they will occur in all groups, which is the point.
Can't compare apples with an orangutan.
We can, actually. They share a lot of DNA as they are both eukaryotes.
But anyhow, evolution is a theory just like all those other theories I mentioned.
Scientific theories aren't worldviews. They are bodies of explanations that address specific phenomenon and sets of facts within a specific scope.
Evolution deals with how species originate.
Atomic theory deals with how atoms work
Plate tectonics deal with how the earth's crust moves about.
Germ theory deals with how micro organisms cause desease.
These aren't "worldviews".
You brought up sports and now you are taking sports away I will admit that age will affect your body but it isn't because of bipedalism, it is because we age. Now, taking into account the abuse we give our bodies and you have early pains.
The point keeps flying over your head.
Then you disagree with objective facts.
And I disagree. Our spine was created for bipedalism.
It demonstrably wasn't.
I believe the mechanism and the muscle system DOES in fact close up one direction so that food and water never reach the lungs.
Except when it doesn't and instead it kills people. Hundreds, thousdands, of them, every day.
now, chew your food at least thirty times, don't overstuff your mouth, let the saliva begin the digestive process and "voila" you don't choke.
Again, this is so simple-minded and short-sighted that it borders the sheer juvenile.
Even only coughing at the wrong time can launch a piece up your breathing tube.
Your perfectly engineered esophagus will work correctly and you won't die from asphyxiation.
Quite simple.
Woosh!!! there goes another point over your head.
You seem to be doing your very best to avoid having to face reality.