alt Hacker News> Or is the idea that there aren't now, but they could be built?
It's hard to see how this would work well with corn, since corn is pretty tall, corn harvesters are pretty huge, and putting panels even high enough for a different set of smaller, realistic harvesters would still require supports that I can't imagine would be cost effective given all the other hurdles they would cause.
Other crops like cotton, alfalfa, and hay aren't as tall, but have the same harvesting problems.
Most harvesting efficiency gains are directly tied to GIGANTIC machines. Farming is insanely efficient and competitive. It's hard to see how smaller machines could be viable and no one would have discovered it until this tech.
I'd guess there is far more potential in grazing land (unrelated to this tech), which is already actively being developed at scale.
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We are right at the point where fully automated harvesting machines start to gain ground. And removing the operator (or moving the operator outside the machine) allows for designs that are less tall. The benefit of wider and wider machines also shrinks with full automation, even if it doesn't fully go away
The good news is that as someone else pointed out, we mostly grow corn for energy, so in a way, this is more about getting the ground we use for corn back than it is getting more energy.