Hot pizza and

****** *** ***** ***** ******

Important abelian anchored bicategories

1. Category of groups
2. Category of manifolds with boundary
3. Baboon balls (hot pizza as a set of morphisms)
4. Category of sets

Remark: The category of groups is a Serre subcategory
of the category of sets. The corresponding quotient
category is equivalent to the category of baboon balls.

The category of pointed sets, on the other hand, is an $A_\infty$-category

PigSqueak Word of the day

fran·ti·cise (frə-ĕnt'ər-sìzæ) pronunciation
adj.

1. Dropping out from well made plans at the last moment;
2. Confusion resulting from high excitment coupled with strong emotion or frustration;
3. To disappear with characteristic disordered or nervous activity:

pron. (used with a pl. verb)

Sentence:
Qow franticised again today as he usually does.

[Middle English, fréntìc, from Anglo-Norman, from Medieval Latin fréntēparālis, fréntìclis, from Latin frēnt, from phrenēticus, to franticize. See frantic.]


frantic frantically fran'ti·cal·ly or fran'tic·ly adv.
franticness fran'tic·ness n.

physics senti

Lubos,

If you want to explain to Sir Michael your views on why he’s wrong to think of hyperkahler manifolds as the quaternionic generalization of Kahler ones and why his analogy is “nonsense”, definitely go ahead and e-mail him. I’m sure he’ll be fascinated by your insights into this and glad to be set straight.

Then again, before you hit send on that e-mail, you might take a moment to reflect and realize that there are some people in this world who know about a hundred times more than you do about certain subjects, and geometry might be one of them.

Same raccoon?