And I disagree. Why have all that tied to a single Toughness when we can have skin thickness? Take your average human, ie.
Head
⇕(Neck)
Left Arm ⇔ UB ⇔ Right Arm
⇕
Left Leg ⇔ LB ⇔ Right Leg
lop off everything but the Head, UB, LB, and left limbs, and give him a toughness of 1200. (s)He is a tough human in the current system. But, since we already track bones in bodyparts (you can see this by butchering), we can expand the notion:
Head (Skull, density: 900, elasticity: 900)
⇕(Neck)
Left Arm ⇔ UB
(humerous, D:1300, E:1300)
Left Leg ⇔ LB
(femur, D:1200, E:1400)
This might work out to a Toughness of 1200. But, as you can see, our human is much more vulernable near the head areas, and his leg is much more resiliant to blunt hits than slashing hits.
That same reasoning can be applied to strength. Endurence is more of Willpower plus calorie system, so that can be replaced too.
And yet Toughness ≠ fatness, nor is it an arbitrary number that is the same for any human.
Also, Endurance is more than willpower plus calories. Calories are an expression of energy available to the body, not energy usable by the body. Endurance is more of efficiency of energy used and availability of that energy. Two people with the same amount of willpower and the same amount of calorie intake can have quite different endurance amounts. This is easily seen when you compare Olympic sprinters versus Olympic marathon runners. One trains up speed, the other endurance. Do you wish to claim sprinters have less willpower than marathon runners? Or that sprinters don't eat enough?
You argue for "simplifying" the system while making it more complex. Remove aspects because you feel that something tied to appearance can represent something that you cannot even tell in human appearance. I don't understand why, except because it can be. Is there really any great benefit to removing the arbitrary numbers that can be assigned to creatures in dwarf fortress that represent abstract concepts like toughness, willpower, stamina, and strength?
(Muscle mass is not directly equal to usable strength in humans as well, but at least there it is close enough that I could let it slide.)
Bottom line, justify why it is needed. Just to "reduce the variables" isn't a good reason, because we don't have a true to life simulator that can simulate the pressure in the veins so only the exact amount of blood comes out. We also don't simulate the lungs oxygenating the blood which is then pumped via the heart to pass oxygen to all the important body parts. There are MILLIONS of variables for every bit of tissue in your own body, so why reduce the variables that represent this to create a sum whole with tissue interactions that are based on appearance modifiers, when the appearance of a body changes due to those hidden variables in the first place?
It seems odd to me, and I don't understand why it should be done your way rather than how Toady is currently progressing with it. Again but with less math and more justification.
A hypothetical society went through a period of famine lasting nearly a decade 40 years ago. Many of the current adults were children at the time, and their bodies would have been permanently weakened by nutritional diseases as a result. They could have decreased mobility, would certainly have lesser bone density, etc. Personality traits would also reflect this experience, such as the famed inability to let go of the 1930's Depression mentality many of us have encountered in older members of our own American society.
Some goblin tribes have been engaged in tribal warfare for hundreds of years (think Germanic tribes or Mongols), and have experienced an accelerated period of natural selection. The genes of those who were strong, intelligent, and early to develop and act sexually would have prevailed. Should they unite, they'd be a force to be reckoned.
A militaristic society conquers a sizable empire, and settles down to enjoy itself. After 3 generations or more, the values and strengths of the older generations have been lost. They may still have great technological military strengths (consider the stirrup), but their mental attitudes and behaviors would have deteriorated. They would lack developed physical strength and discipline, mental fortitude developed through important decision making and so on. Should a trying time come along, their luxurious lifestyle would surely make its effects apparent.
So you have a society that has been naturally selected to be stronger and more fit than normal. Then because they conquered everyone they become decadent and more easily overcome. I guess the genes weren't that strong and/or there was too much crossbreeding with their conquered civilizations.
Something to note... Rome didn't collapse because it's people lost the warrior way. Quite the opposite, actually. They became more factionalized and aggressive, and lost the non-warrior ways that allowed their empire to stay together. This mostly occurred because someone gave them a new idea for rulership that gave advantages to those who spent more effort on fighting ability rather than engineering and consolidation. It was this factionalization that caused the decline in technology, since you didn't have as many people learning it. No need to train someone to use something that would only be of use if there was cooperation.
i also believe that brooks having 7/7 water is a bit absurd
Yes. Brooks should have 3/7 water. You can swim in them, but not drown. Maybe some smaller like 2/7.
There should be runoff seasonal gullies too. Basically brooks that are dry for parts of the year. And a smaller version of a brook: There are a few always-flowing bits of water near where I live, things that could be stepped over and don't even cover your shoe in water, but are flowing year-round.