A dearth of IPOs from the tech sector this year, and some high-profile disappointments, bring many questions. Is it best to stay out of the harsh cold of the public markets and snuggle up for winter? Throw another bundle of venture capital money on the fire. There’s been just 23 tech IPOs, compared with 62 last year. Yet.. the overall performance has not been as dire as widely believed. Why would any tech company think that 2016 or 2017 is going to be any better?