>ideas that seem dumb and ideas that are dumb.

The first makes money, the second doesn't. :)

Agreed.

There are dumb ideas, and dumb ideas that are poorly executed.

Juciero is clearly the latter.

But just because an idea is dumb, doesn't mean it won't be successful in the market.

Two of my favorite satires on this point.

https://www.youtube.com/watch?v=t28ZB1t6gg8

and

https://www.youtube.com/watch?v=sDEL4Ty950Q

This was hysterical:

http://www.cc.com/video-clips/9nzwjt/the-colbert-report-vess...

I know people who bought the Juicero so how do you know it didn't have the potential to make money? That is a gamble that is up to investors to decide. A niche product can still be very profitable.

Hindsight. Juicero is so obviously a stupid failure now that we know it is. We can't even imagine a world where it wasn't stupid.

Now try to remember a tech/company you thought was stupid that became a massive success. For me, I remember thinking wifi was stupid -- I was a power user, laptops were grossly underpowered circa 1998. Why would anyone need wireless internet on a desktop?

I keep that story in mind because it keeps me humble about hindsight bias.