$NVIDIA (NVDA.US)$ Professional engineer here in high perfor...

This is not the first time (and the last time) problems were spotted late into the design phase - you guys just don't know, because they are rarely reported to the general public. Engineering design is a very iterative process, and almost all the generations of chips had to go through the same thing, where design issues later became upgrades. Again, the general public wouldn't know, but we do. This is not unlimited to chips, but basically everything we see today.

The stock selling by the CEO was pre-filled months ago. Don't let people who ride that September tide discourage you. A 2% drop in sp500 is nothing, compared to the usuals in the past. Just take it easy.