A ship-sized object would have been a dimensionless point.
That we are not here dealing with a dimensionless point appears unessential.
Slowly it grew in brilliance; and then it was no longer a dimensionless point, but was becoming elongated.
There was nothing that looked like an asteroid; all the images, even under the highest magnification, were dimensionless points of light.
They could deduce from the dimensionless points of light the glowbirds became when festooning the ceiling that it was at least a kilometer high, possibly more.
They are dimensionless points.
It can be the mind's abstraction for an edge, a crack, a fissure or a chain of dimensionless points, linking their extremities.
Gravitational collapse releases energy; and collapse to a single, dimensionless point releases an infinite amount of it.
This picture of the universe as a dimensionless point in Outside space is the way he's been thinking all along.
Hilton thought of Terra and there it was; full size, yet occupying only one infinitesimal section of a dimensionless point.