My interpretation of dilithium is it has to be an energy amplifier, which incidentally melds the regulator-powersource concepts. The amount of power Trek ships outputs is too high for real life antimatter, and in TOS the one time they use antimatter as a munition its destructive power is stated but is too powerful for real life by several orders of magnitude.
Dilithium as a perpetual motion machine (creating impossible levels of energy for a "small" input) also helps explain why dilithium as an integral part of warp drives is so enduring, and seen as inextricable. It's the easiest way to get the impossible power output required for mid to high warp speeds; it's low hanging fruit. Another way to put it is dilithium is wood before England's forests were used up and forced a switch to its gargantuan coal deposits. Coal is a better power source, but no one bothered until wood was running out because the investment to get coal is higher. Same thing happened with the switch from bronze to steel.
I stand by the idea that warp drive should work without dilithium, but by the standards of the period we might reasonably assume a dilithium-or-nothing attitude, as in cruising at warp <2.0 and using stasis is too slow for business and war. That being said, we should see fusion, antimatter, and fusion antimatter hybrid powered intrasystem warp cargo and defense ships sans dilithium, as well as sub-warp impulse only intrasystem ships. The former is desirable for reaching the Oort belt of a system in less than the span of months, while the latter is fine for inner-system work.
Dilithium as a perpetual motion machine (creating impossible levels of energy for a "small" input) also helps explain why dilithium as an integral part of warp drives is so enduring, and seen as inextricable. It's the easiest way to get the impossible power output required for mid to high warp speeds; it's low hanging fruit. Another way to put it is dilithium is wood before England's forests were used up and forced a switch to its gargantuan coal deposits. Coal is a better power source, but no one bothered until wood was running out because the investment to get coal is higher. Same thing happened with the switch from bronze to steel.
I stand by the idea that warp drive should work without dilithium, but by the standards of the period we might reasonably assume a dilithium-or-nothing attitude, as in cruising at warp <2.0 and using stasis is too slow for business and war. That being said, we should see fusion, antimatter, and fusion antimatter hybrid powered intrasystem warp cargo and defense ships sans dilithium, as well as sub-warp impulse only intrasystem ships. The former is desirable for reaching the Oort belt of a system in less than the span of months, while the latter is fine for inner-system work.
Depending on the number of shifts, there should be three to four helms people total. Since piloting a starship seems rather aircraft like I guess it would be their primary role, but they might have secondary duties in other sections during their other shift. That's if anyone has a second work shift, instead of 1 shift on, 3 off.Also, someone's got to be crewing Detmer's post when she's off-duty, right? There should be at least one, maybe two other people who do the job as junior officers.
I think they can go back to the pool, and that would likely happen because the host selection is, if I'm remembering correctly, artificially small, and we know the symbiote is selective of who it will accept.It's also possible that the symbiont took breaks between some hosts. if that's a thing they can do.