Without this sort of artfulness the Alto display would not have been possible at all. Even within its limits it made severe demands on the machine; its resolution of 606 by 808 pixels meant that nearly a half-million bits needed to be refreshed thirty times per second. (Kay envisioned a one-million-pixel display for his Dynabook, but had to be satisfied with what he got.) Once it was running, however, it made believers out of skeptics. Not the least important of these was Jerry Elkind.
