Перевести текст. but what of the grand vision of a molecular computer? in our view, the field is still not much closer to pouring a pentium chip out ofa beaker than it was when tour and his colleagues envisioned this possibility a quarter century ago. and the attempt to reach this far rout goal has come at a significant cost: a half century of boom -and-bust cycles, with premature announcements of break- throughs attracting money and attention but then slowing the field down when those results and promises had to be walked back.