How can you be sure that she is wrong? Were you an industry professional when RDRAM was introduced to the market and hyped to be soooooooooooo much better than SDRAM which it was supposed to replace, yet the latency and heat problems caused it to actually suck even worse? I worked for an OEM, I know how bad it sucked. How many industry pros testified that RDRAM was any good? That would be a big fat ZERO, yet there were engineers from Intel, Apple, and OEMs who testified about the suckiness.
RDRAM was all HYPE, get it? No, you wouldn't because why would people who work in the industry know any more than some casual investor who knows nothign about technology? Freaking stupid garbage failed on it's own, ok.. get that through your thick skull.