Metric first motion

 Moving back to the primary focus for this blog, check out these notes about a class period on spacetime smart 3-vectors as a bridge to both high speeds and to curved spacetimes. A short video abstract on this topic may also be found here.

Healing Narratives

I keep hearing media whining about "polarization", and in many cases (certainly with election ads) focusing on "who is the bad guy" (with or without evidence), when the long established and standard solution is to: 

  (a) focus on problems that most agree on, and 

  (b) find ways to address them by trial and error. 

This has not only been humanity's superpower over the past 70,000 years, but it is also how life has evolved and nurtured layers of complexity from the beginning i.e. via the cycle of "vary then select".