I also wonder about the viability of a lot of these business models and whether investors got all razzle-dazzled with the 'tech' aspect.

I mean, take something like food delivery -- if there was actual money to be made there, don't you think stores and restaurants would have been delivering their goods all along?

Throwing an app into the mix evidently makes it sexy enough to warrant investment, but ... color me unconvinced.

I think the next couple of years are going to see a lot of these ventures go belly-up ... in fact, it has the potential to be the next crash.