Rooftop farms and greenhouses can be very expensive. Freight Farms repurposes shipping containers as hydroponic gardens using LED lights. It may be viable for high value greens that need to be fresh - think restaurants and high end consumers.
Starting around 1915 and lasting into the early 1920s, a US Post Office-backed “Farm to Table” movement encouraged consumers to have farmers ship them fresh food via parcel post. Its goals were to lower food costs while aiding farmers. In November of 1919, the B. F. Goodrich company supported a Farm to Table week in which consumers were to drive to rural areas to buy provisions from farmers. At least one restaurant which ran a farm, Kolb’s in New Orleans, adopted the slogan. In the late 1920s the Miami FL chamber of commerce encouraged restaurants to buy local, arguing that it was not only healthy to serve more fruits and vegetables but good for farmers and the Dade County economy.
If you've ever tried licking the terminals of a 9 volt battery, it is likely you found a tingling sensation and a bitter metallic taste. It turns out researchers have looked at electrical taste stimulation. After viewing this video I looked at a few papers, but didn't see anything like Hiromi Nakamura's fork. I couldn't find any papers by her on this, but if it works as shown it might be very useful for playing with food and even making it possible to cut salt intake. In any event I suspect a lot of people are trying this now.
Hallo! A great deal of steam! The pudding was out of the copper. A smell like a washing-day! That was the cloth. A smell like an eating-house and a pastrycook’s next door to each other, with a laundress’s next door to that! That was the pudding! In half a minute Mrs. Cratchit entered—flushed, but smiling proudly—with the pudding, like a speckled cannon-ball, so hard and firm, blazing in half of half-a-quartern of ignited brandy, and bedight with Christmas holly stuck into the top.
Oh, a wonderful pudding! Bob Cratchit said, and calmly too, that he regarded it as the greatest success achieved by Mrs. Cratchit since their marriage. Mrs. Cratchit said that now the weight was off her mind, she would confess she had had her doubts about the quantity of flour. Everybody had something to say about it, but nobody said or thought it was at all a small pudding for a large family. It would have been flat heresy to do so. Any Cratchit would have blushed to hint at such a thing.