Tai Chi Chuan journal #8

I need to capture several points from this morning's lesson:

1) My stance should be broader; paradoxically a broad stance helps move arms in the right way.

2) Before turns, I need to stretch my arm further without moving the shoulder. In other words, the arm in the upper L should be completely stretched.

3) While bending forward, I need to keep my head and neck straight. The same applies to axis turns.

Quote of the Day: hindsight quazi-linear graph

It is important to recognize that, in the view of the actors of those days, these variants were at the same time quite different from each other and equally were serious rivals. It is only by retrospective distortion that a quasi-linear development emerges, as depicted in figure 4.
Bijker, Wiebe E., et al. The Social Construction of Technological Systems : New Directions in the Sociology and History of Technology, MIT Press, 2012.

Hindsight seems to be rearranging connections b/w objects. The set of artifacts contains the same entities, but the structure turns into a poset.

In deciding which problems are relevant, the social groups concerned with the artifact and the meanings that those groups give to the artifact play a crucial role: A problem is defined as such only when there is a social group for which it constitutes a “problem.”