[Avodah] kosher switch

[Micha Berger]

On Tue, Oct 04, 2011 at 12:01:23PM +0100, Chana Luntz wrote:
:> At some point, the probability gets to be a small enough miut that it's
:> ignorable.

: Why?  If at any given point, you still have only a 50% chance of getting a
: head?  

If brushing one's hair is pesiq reishei for pulling hairs out, it's
not because we consider the odds of uprooting each hair as a separate
risk.

AIUI, the odds add up.

: > IOW, I don't think being goreim something that rov of the
: > time violates an issur is any more mutar than geramah of a vadai.
: 
: Well clearly there is such a concept - that is precisely the din of psik
: resha....

Only if pesiq reishei requires specifically a vadai, and not a ruba
deruba. Which is a rephrase of my earlier statement. How do you know that?

IOW, you're assuming that Mike the Headless Chicken disproves the idea
that actually cutting off a chicken's hard would be a pesiq reishei!

...
: The reality is that if this is your only option, you put up with things not
: working on shabbas as smoothly as they do on weekdays...

But it must work with enough reliability for my "sure enough" standard
to be met.

Tir'u baTov!
-Micha

-- 
Micha Berger             Our greatest fear is not that we're inadequate,
micha at aishdas.org        Our greatest fear is that we're powerful
http://www.aishdas.org   beyond measure
Fax: (270) 514-1507                        - Anonymous