Feel free to ignore this if you feel I'm beating a dead horse, or if you'll be easily offended by being quoted in my rant, but I'm sufficiently annoyed that I feel the need to soapbox a little.
"It was pointed out to me on page three of Men of Psience that, firstly, P4@ telekinesis only effects whole objects, and secondly, that it exerts no force on its targets."
-- If it exerts no force, then it cannot cause movement, period. Unless this is in utter ignorance of the laws of physics to the point where you're basically moving the entire universe along with it. After all, in one sense electrostatic forces make it so nothing is actually touching, and on the other hand, gravitational forces make it so everything in all the infinite multiverse is basically "touching" in the same way. Force imparts movement, movement begets momentum.
"The thread would not prevent someone from lifting or moving the car within the limits of the length of the thread, but you could not pull the stake from the ground or break the thread."
"The first is because of the delicacy factor. "
--That's ridiculous. I can "delicately" lift a ten-ton shipping truck, but I can't use the same amount of TK (it is an amount of energy whether you call it a force or not) to destroy a quarter-ton Geo Metro? I call shenanigans, sir...
"The second is because it makes force generatives necessary for any skill that would break one object into two"
--Well, yeah. You move something, you're generating a force. Sir Isaac Newton would spontaneously combust in his grave if you honestly argued that you could cause motion without generating a force.
"and thus gives a solid and clear bias distinction between worlds in which you can move independent objects and worlds in which you can break objects. "
--Why? I cause a force. If the thing I'm handling can survive that force, it moves. If it can't, it crumples like a beer can. My telekinetic third limb is the same either way.
"The TK pulse that can shift the pebble a few feet can shift the sun a few feet just as easily."
--Obi-Wan Kenobi can force-push half a dozen battledroids. Why does that imply he can move a star? Even Yoda would swallow himself in astonishment.
"On the other hand, I tend to think that simple TK does not, and that suggests that heavy TK does not, either. If you move an object "as fast as your hand can move it" to a particular point, and then release it, you are deemed to have brought it to rest by releasing it. It would fall straight down from there, barring any other interference. So it depends on the skill."
--So you're saying releasing it is automatically akin to forcing it to stop? (Force, again...) You can't use Light or Heavy TK to pick something heavy up and fling it, even though they're more complex skills? I'm envisioning this as using TK to pick up a giant rock, swing it like a meteor-hammer, and let it go... and instead of flying off like the fist of an angry god, it drops... well... like a rock. If I saw that happen I think I would just blink my eyes in abject shock and then stand there till whatever I was throwing it at came over and smushed me into the next Verse.