This is definitely a big issue with Google Now. It's not that it's unpredictable though, at least in my opinion. It's that it's unpredictable combined with no w

This is definitely a big issue with Google Now. It's not that it's unpredictable though, at least in my opinion. It's that it's unpredictable combined with no way to deal with the consequences of that. It does what it thinks it should, and you have no knobs to turn. If it fails, it just fails. The first year of Google Now, it would often do exactly that. It popped up the card that it claims will appear at the end of the month with information about how far you've walked or biked maybe twice? The rest of the time, it just didn't appear, and there's no way to call it up manually. I noticed in KitKat that it now offers to let you tell it whether you typically walk, bike, drive, etc. to particular destinations. It seems like in a number of areas, they've chosen to add some manual control to the automated process. I think that's going to be good enough. I'm fine with software that tries to intelligently guess my needs as long as it provides me with a way to override incorrect guesses.