The dashboard from Visa and Allium Labs is designed to strip out transactions initiated by bots and large-scale traders to isolate those made by real people.

It was by chance, about a decade ago, that Tipping and I got to talking onions, or Allium cepa.

At the farm, he leaves a foot between rows of Allium to allow for easy weeding with the six-inch blade of a stirrup hoe.

In the latter, the seafood are mere backup singers, while the star is the allium burst of raw scallions, yellow onions and chives.

The result is a dish with pure sweet-potato flavor accented by fresh notes of allium and nutty sesame seeds.