It's very tempting to look at today's brickmaking castes and make the leap to Indus technology. I've done it myself. But then one must remind oneself of the vast depth of time we're considering. It seems impossible that this craft could really be genetically connected with practices 4500 years ago.
That's why I'm asking about history, really, to see how far back the current practices are documentable.
As for the Needham Project, O. P. Jaggi had a go at it. Not that good, but sometimes one is surprised.
Best,
Dominik
--
Professor
Dominik Wujastyk,
Singhmar Chair in Classical Indian Society and Polity
,
University of Alberta, Canada
.