Once more, a video replication of the workings of the Antikythera Mechanism has me mesmerized. The original two thousand year old system of gears was a complex model of celestial mechanics. Descriptions I've read in the past suggest that its design from an earth-centric perspective rather than a solar perspective is its main flaw. This evening, I found a perceptive comment on the criticism:

'Perhaps the ancient Greeks did conceive of a heliocentric model of the solar system, however they may have realized that it is neither more nor less true than a geocentric system. In this case I think it seems natural that the sun and moon appear to be going around the earth, because this is the point of view of the user. I doubt the device was designed to be used by someone standing on the sun, therefore a heliocentric representation would seem very odd and rather meaningless.'

StimuLAZ
comment on video graphics of Antikythera mechanism