No. 6000 years. Not 4000. (This isn't helping your argument to authority btw.)
It is now currently 2015AD. The earliest true written language examples come from 3200BC.
That's 6000 years. Not 4000.
The major breakthrough that fed the industrial revolution was the discovery of easily manufactured steel using the bessemer process. Prior to this, steel was too inconsistent and too expensive to create the industrial equipment needed for rapid technological advancement. (other metals are too soft, too brittle, too heavy, or too expensive.) The materials required to produce mass manufactured steel are not very rare, and the properties of them were well known well prior. Most were known at the time language was first being put down in permanent form. (In fact, fired clay tablets-- requiring kilns-- are the best surviving examples of such early literature, and many such texts discuss the shipment of smithable ores, indicating that the humans knew the properties of those metals in sufficient detail to be able to construct a bessemer reactor if they had the idea for it. That idea came about in the western world in less than 120 years-- Human understanding of those metals went from simple metalurgical formulae and psudo-religious hogwash in the dark ages to structured science after the renaissance during that time, permitting the creation of the theory behind the bessemer reactor.)
The big factor was probably a population requirement not being met previously-- a situation exacerbated by warring over resources and over gods and politics. You need sufficient population numbers to sustain a boom in technological growth, and the ancient world lacked the workforce.
However, this has more to do with the fact that our planet had several events that nearly wiped out the human race, putting our numbers at low values initially. Things like the Toba eruption, and of course, the ice-age. Things like the black death also would have played significant roles in reaching the required number of humans needed for an industrial revolution. Humans have a surprisingly small amount of genetic diversity, indicating a prior genetic bottleneck in the past, hinting at such a catastrophe early in our history.
It is foolish to assume that all possibly intelligent creatures would have such setbacks both in nature and in culture.
As a consequence, even if we take the linked article at face value, and have 2 G type star systems with habitable planets forming at exactly the same time, there is a pretty good chance that they could have us beaten technologically by now.