The appliances Tang Li copied and handed over to Tang Guo for sale daily were not unlimited.
Although they ranged from mobile phones and computers to flashlights and electric lamps, from electric fans and televisions to electric heaters and washing machines, the variety was extensive.
However, the types of items sold each day did not exceed fifteen, each type being different, and the quantity of each item did not exceed three.
Therefore, although Tang Guo could earn several thousand points daily, it did not attract attention.
Frankly speaking, if Tang Li were to copy appliances from her space without limit every day, it would not be impossible to earn tens of thousands or hundreds of thousands of points daily.
However, Tang Li was not lacking in points at the moment, and large-scale selling of appliances would attract attention, so she did not take the risk.
Even if she ran out of points, Tang Li would not openly copy these appliances for sale; she would only go to the black market to exchange them for points.
In the apocalypse, it was still wise to be cautious.
Tang Guo was very puzzled as to why Tang Li would take perfectly good appliances and exchange them for useless discarded ones.
But she didn't ask many questions.
She knew that Tang Li must have her reasons for doing this.
She didn't need to know why; she just needed to do as Tang Li said.
After Tang Guo left, Tang Li continued to stay at home.
Since the snow in the shelter was cleared, and she had collected soil from the suburbs into her space, Tang Li had been staying at home, with nothing to do, and had not gone out again.
Just then, on Jiangcheng's morning news, a broadcast that interested Tang Li came again.
"This station reports that the Jiangcheng Research Institute announced this morning that brain-computer interface technology has achieved a major breakthrough, and based on this brain-computer interface technology, a mechanical exoskeleton has been successfully developed!"
"This brain-computer interface technology is non-invasive. It can be bound to the user's brainwave signals. It receives brainwave biological signals transmitted from a specific brain externally, simulates biological signals and feeds them back to the brain, interacting with the specific brain..."
Tang Li raised an eyebrow as she listened to the news's introduction to this brain-computer interface technology.
Although such technology existed before the apocalypse, it was only the brain sending signals to the machine unilaterally.
For example, mechanical prosthetics could receive biological signals sent by the brain to the muscles and perform actions according to the biological signals.
For example, in China's laboratories, it was already possible for people to control computers to type with their consciousness.
But Tang Li did not expect that it was now possible for the human brain to receive signals emitted by machines.
Although, according to the introduction, it needed to be bound to the user's brainwave signals to simulate signals and interact with a specific brain, which sounded like very strict usage conditions.
However, this was also a very heaven-defying function.
It could allow people to receive images from a camera and hear sounds from a microphone with their eyes closed, and even obtain mechanical tactile sensations through sensors...
With this brain-computer interface, wouldn't humans essentially gain an extra body?
It's just that this extra body wouldn't be made of flesh and blood or bones, but of steel and machinery!
"...Unfortunately, this brain-computer interface technology is very demanding of the user's mental strength. In experiments, most people could only persist for 2 to 3 hours before feeling mentally fatigued and needing sleep to replenish their energy..."
"...This brain-computer interface technology will not be fully applied for the time being. The function of simulating biological signals and feeding them back to the brain for interaction with a specific brain will be temporarily reserved for further development..."
"The mechanical exoskeleton designed and manufactured based on this brain-computer interface technology can assist people in various tasks... It is now available for sale on major exchanges. Those interested in purchasing can go to the exchanges to customize..."
After finishing this news report, Tang Li put on her electromagnetic radiation shielding suit.
She was very interested in this mechanical exoskeleton and planned to go to the exchange to customize one.