“Good,” Bennett said, and pointed at the ceiling. “No waves get in, no waves get out. Schr?dinger would be jealous. I need more cells, though. The mesh sucks power like you wouldn’t believe. Not to mention all the rest of this equipment.” Bennett motioned to the rest of the technology in the center. Because of the mesh, it was the only place on Roanoke where there was technology that you wouldn’t find past the middle of the twentieth century on Earth, save power technology that did not run on fossil fuels.
“I’ll see what I can do,” I said. “You’re a miracle worker, Bennett.”
“Nah,” he said. “I’m just your average geek. I’ve got those soil reports you wanted.” He handed over a PDA, and I fondled it for a moment before looking at the screen. “The good news is the soil samples I’ve seen so far look good for our crops in a general sense. There’s nothing in the soil that will kill them or stunt their growth, at least chemically. Each of the samples was crawling with little critters, too.”
“Is that a bad thing?” Trujillo asked.
“Got me,” Bennett said. “What I know about soil management I read as I was processing these samples. My wife did a little gardening back on Phoenix and seemed to be of the opinion that having a bunch of bugs was good because they aerated the soil. Who knows, maybe she’s right.”
“She’s right,” I said. “Having a healthy amount of biomass is usually a good thing.” Trujillo looked at me skeptically. “Hey, I farmed,” I said. “But we also don’t know how these creatures will react to our plants. We’re introducing new species into a biosphere.”
“You’re officially beyond anything I know about the subject, so I’ll move on,” Bennett said. “You asked if there was any way for me to adapt the technology we have to switch off the wireless components. Do you want the long or short answer?”
“Let’s start with the short answer,” I said.
“Not really,” Bennett said.
“Okay,” I said. “Now I need the long answer.”
Bennett reached over and grabbed a PDA that he had earlier pried apart, lifted the top off it and handed it to me. “This PDA is a fairly standard piece of Colonial Union technology. Here you see all the components; the processor, the monitor, the data storage, the wireless transmitter that lets it talk to other PDAs and computers. Not a single one of them is physically connected to any of the other parts. Every part of this PDA connects wirelessly to every other part.”
“Why do they do it that way?” I asked, turning the PDA over in my hands.
“Because it’s cheap,” Bennett said. “You can make tiny data transmitters for next to nothing. It costs less than using physical materials. They don’t cost much either, but in aggregate there’s a real cost differential. So nearly every manufacturer goes that way. It’s design by accountant. The only physical connections in the PDA are from the power cell to the individual components, and again that’s because it’s cheaper to do it that way.”
“Can you use those connections to send data?” Zane said.
“I don’t see how,” Bennett said. “I mean, sending data over a physical connection is no problem. But getting into each of these components and flashing their command core to do it that way is beyond my talents. Aside from the programming skills, there’s the fact each manufacturer locks out access to the command core. It’s proprietary data. And even if I could do all that, there’s no guarantee it would work. Among everything else, you’d be routing everything through the power cell. I’m not sure how you get that to work.”
“So even if we turn off all the wireless transmitters, every one of these is still leaking wireless signals,” I said.
“Yeah,” Bennett said. “Across very short distances—no more than a few centimeters—but, yeah. If you’re really looking for this sort of thing, you could detect it.”
“There’s a certain point at which this all becomes futile,” Trujillo said. “If someone’s listening for radio signals this weak, there’s a pretty good chance they’re scanning the planet optically as well. They’re just going to see us.”
“Hiding ourselves from sight is a difficult fix,” I said to Trujillo. “This is an easy fix. Let’s work on the easy fixes.” I turned to Bennett, and handed back his PDA. “Let me ask you something else,” I said. “Could you make wired PDAs? Ones without wireless parts or transmitters?”
“I’m sure I could find a design for one,” Bennett said. “There are public domain blueprints. But I’m not exactly set up for manufacturing. I could go through everything we have and cobble up something. Wireless parts are the rule but there are some things that are still wired up. But we’re never going to get to a place where everyone’s walking around with a computer, much less being able to replace the onboard computers on most of the equipment we have. Honestly, outside this black box, we’re not getting out of the early twentieth century any time soon.”
All of us digested that for a moment. “Can we at least expand this?” Zane finally asked, motioning around him.
“I think we should,” Bennett said. “In particular I think we need to build a black box medical bay, because Dr. Tsao keeps distracting me when I’m trying to get work done.”