Are we in a start-up bubble?
I'd say yes... Look at all the crazy acquisitions recently. The offer from Google to buy Path, Groupon trying to buy UseHipster... Facebook's $50 billion valuation.
If it's not a small bubble, I don't know what the hell it is. I mean, if it's talent acquisition, then why on earth would you pay $100 million to a company, why not give the person you -really- want, a bonus of $5 million to leave and join you?
We aren't in a startup bubble, but we're in an investment capital bubble. There is way more investment in startups than is strictly rational. It's a good time to be an entrepreneur.
Definitely a yes. It's called the Business Cycle, everything goes up and down, we're on our way up pretty quickly.