technology review, martin giles and maribel lopez of "forbes," this week on "press here."moing in the history of my life, this is going ton an artifact. it is a roll of tums. i bought it the other day at a cashierless store. the kind of store where you go in, take what you want off the shelf and walk out.no cashier, . the store knows who i am and what i selected and the cost of the item is charged to my account. well, why tums? i feel fine. it was actually just small and really inexpensive and i wanted to try out the concept. i'm not sure my future grandchi grandchildre grandchildren are going to be impressed. in the future, most stores will probably be cashierless. and it will be krishna modicuri who made that all possible, joined by maribel lopez and martin giles of m.i.t. technology review. i was amazed thi i'm sure most people have that experience, as well. how does it work? how did the machine know i had takent>> so let me answer that question first by telling you how it all started. this was about four years ago, when my wife and i had just moved back from south afri

technology review, martin giles and maribel lopez of "forbes," this week on "press here." >>> good morningew. in the history of my life, this is going ton an artifact. it is a roll of tums.