At the centre of Holme I (Seahenge) was situated a great inverted oak cut down and dug out in the spring/summer of 2049BC and hauled into place with honeysuckle ropes (fragments of which were found on site). The inversion of this centrepiece suggests that branches are like roots in the air and that roots are like branches in the earth (an insight not possible without inversion) and yet an explanation for the upturning of this oak at that moment remains incomplete and fundamentally unhistorical. At what since has become an erased site, the influence of the prehistoric continues to exert its limit on knowledge, both as an outer edge to the historical continuum and irreducibly in the present, in the role of a spokes-object for all sites, as a base refusal of historicisation.
