the diff between
newtonian mechanics
and special relativity is not
as great as the conceptual gap
between the latter & general relativity
the key shift
from newtonian to
special relativistic mechanics
is abandonment of the independence
of time, subsumed in minkovski's spacetime
but the key shift
between special and general
relativity is the abandonment of the concept
of a constant spacetime. now it is dynamic, affected
by the very mass that inhabits it. it is not
so much a warping, but of
"removing" it from
of course
there's no free lunch
the continuum stress-energy
relations don't solve
. .

content/isaac.jpg content/albert.jpg

. . .

physics disciplines thought experiments as poetry disciplines metaphors
but only logic has an inner discipline

y manin, 2002