We already have that thing in Europe - it's called night trains. Depart in the evening instead of taking a screamingly early morning flight, have some food and nice vistas in the restaurant, work a bit in your room. Arrive in the city center next morning. No hotel cost.
I like it at least. Granted, I can work from my laptop so I can travel a bit longer than strict overnight without losing "efficiency", but I've been traveling this way when I have had some business or vacation in continental Europe (middle Sweden to Paris, Amsterdam, Italy, southern Spain
Or - of course, just including the control character "EOU" in any message sent:
http://www.catb.org/jargon/htm...
I first read the headline word "plants" as "that kind of organism with roots and leaves", and well, if they start reflecting solar power in a co-ordinated way for self-defense like in the David Niven "Ringworld" series, it would be an interesting development.
There are several home-built tandems with individual handlebars, like this one I saw in Amsterdam : https://rosnix.net/~per/album/...
Also this child seat for the Brompton folding bike works quite like the original post : http://documentally.com/2011/0...
Last but not least, the german Hase Pino semi-recumbent bike. The captain sit in the rear in an upright position, the stoker is seated in a comfy recumbent seat in the front. The bike is selling quite well in Germany. It's used like normal tandem bikes for couples going on vacation and errands together, but also for transportation of kids and people with various disabilities - the bike is very adaptable to various capabilities of the riders. http://hasebikes.com/84-1-Tand...
Price? About 3000 Euro for the Pino. Probably out of range for people considering bikes a toy or something to hang on the rear of your RV / SUV. But quite OK for a vehicle that can meet a lot of your mobility needs. Bicycles can pretty successfully do much of the same city transportation done by cars (40-50% of all trips in Copenhagen and Netherlands are made by bike), and if you save on gas (or even more - many people don't bother getting a motor vehicle at all, actually) you can afford much better bikes than the walmart bike-like objects (yes, we have that in Europe too).
"No matter where you go, there you are..." -- Buckaroo Banzai