For the problem is that you think it takes "_complete_ knowledge" for planning to be effective, while I don't think it does. "Complete" is an important adjective, which you can't defend, hence your non-answer.
>this is why, in each case, you place the qualifications
>on the side of _planning_, _not_ knowledge.
I take it self-evident that at any given time human knowledge is not "complete" in the sense you speak of, whether we are planning or not planning
>never once said planning could only be done with complete knowledge. you
>are too enamoured of the performance of a disagreement. i said a number
>of times that planning _presumes_ complete knowledge.
I don't think that planning presumes "complete knowledge," nor do many other people, for that matter. It is you who thinks planning presumes "complete knowledge."
>That is, not shitting, but wiping your bum with toilet paper, and toilet
>paper is definitely not a natural need
I'm glad to hear you can comfortably dispense with toilet paper and food. I suppose you prefer sounding ridiculous than rethinking the nature of need, knowledge, and planning. One has no need to use the word "natural" to describe the needs that socialism should satisfy.
Yoshie