Dyson and co-panelist Scott Kupor, managing partner and chief operating officer at Andreessen Horowitz, stopped short of calling tech a bubble. However, they said there are concerns.
"If you're comparing it to '99-2000 for a bubble, then by any metric ... this is nothing like what we saw in '99-2000," Kupor said. "All the growth in the stocks has been earnings driven and not P/E driven."
Dyson said tech has benefited from a lot of funding sources, but should put that money toward a higher purpose.
"Supply change, hydroponic farming, there's a whole lot of really interesting problems that are more infrastructure, and there's the whole health area," she said. "I'm interested in talking about sustainable problems. How about sustainable bodies?"