
There a great many technological advancements that are touted as “game changing” or “revolutionary,” but very few end up delivering on that promise. I still remember all the hype surrounding the Segway and the Virtual Boy.
Granted, these might have been just a byproduct of market hype, but there was a genuine belief that this technology would revolutionize the world. It just didn’t pan out.
I know I’ve discussed a number of technological advances that are very likely to deliver on that hype. I still believe that artificial intelligence, brain computer interfaces, and human enhancement will be true game changers for the future of humanity.
However, there’s one technology that I haven’t really touched on. Arguably, it’s the most needed technology in the world right now. It wouldn’t just revolutionize the world as we know it. It might literally save it.
That technology is nuclear fusion.
Now, there’s a reason I haven’t talked about it much, aside from it not being in any particular area of expertise for me. Nuclear fusion doesn’t exactly have a lot of sexy implications like AI or human enhancement. It also has a bit of a bad reputation among those who speculate about the future.
The running joke is that nuclear fusion is 30 years away and always will be.
If you’re not laughing, don’t worry. It’s not a very good joke and it’s not the least bit funny in the grand scheme of things. That’s because nuclear fusion, if we could get it to work on a large scale, would effectively solve the world’s energy problems. It would largely eliminate the need for oil, coal, natural gas, and most other forms of energy.
If it sounds too good to be true, then you’re starting to get the joke. However, this is no magical fantasy power source on par with Dilithium Crystals. Fusion power is very real. We feel it every day. It’s what powers the sun. It’s what powers all the stars we see in the night sky.
Most people who passed high school physics know what fusion is. Basically, you take a bunch of hydrogen atoms, the most abundant element in the universe, and fuse them together under tremendous pressure and heat. The end result is helium, the second most abundant energy in the universe, and a whole lot of energy.
Unlike nuclear fission, which splits larger atoms into smaller atoms, this form of power doesn’t rely on heavy radioactive elements. As such, it produces next to no waste or greenhouse emissions. It also allows us to use seawater as fuel, since all you need is hydrogen. As a power source, it is as close to perfect as you can get.
Naturally, countless engineers and scientists have spent years trying to make fusion a viable power source. For decades, it was promised to be the ultimate solution to our energy needs. However, no matter how many times someone said viable fusion was close, it never came to be. That’s where its reputation as always being 30 years away came from.
On top of that, fusion research has had a few famous frauds. The whole failure of cold fusion was not a good look for the industry. I suspect that affair convinced too many people that we would never have fusion.
Now, there are some legitimate engineering and scientific reasons for why fusion has been so difficult. Again, I’m not an expert and I’m not qualified to explain those reasons. I’ll just say that it often comes back to making a fusion reaction self-sustaining and containing the massive heat required to keep that reaction going.
These are not challenges that require us to break the laws of physics. These are mostly engineering challenges that require study, refinement, and new materials. In the same way you can’t expect blacksmith’s from the 17th century to make a modern car, you can’t expect our current engineers to make a fusion reactor without the necessary components.
Despite what jokes and skeptics may say, we have made real progress. Very recently, an experiment at Lawrence Livermore National Laboratory that utilized high energy lasers set a new energy record. That may not mean much to the average person and it certainly doesn’t mean that fusion has been perfected. It just means we’re getting closer to that magical break-even point.
That’s the point where the energy we get out of the fusion reaction is greater than what we put into it. To date, plenty of labs have created nuclear fusion reactions. They just take way more energy than they give off. Over the years, that difference has gotten smaller and smaller. Once it crosses that break-even point, then we have fusion and that will be a game-changer.
I cannot overstate just how much the world needs that kind of game-changer right now and I’m not just referring to the lingering damage of the COVID-19 pandemic. Every year, we get increasingly dire reports from the IPCC about the impacts of climate change. Despite what politicians and oil lobbyists say, we’re fueling these impacts with our reliance on fossil fuels.
Fusion, once refined and scaled, could do more than anything to reduce our emissions of greenhouse gases. It might not eliminate fossil fuels completely, but it will make them far less necessary for all the energy we need in the present and the future. I would even go so far as to say that nuclear fusion might be the only way to adequately power the future we’re trying to build.
That’s why it’s not helpful to make jokes about how fusion is always 30 years away.
Instead, this might be the best possible time to actively cheer on the people working on nuclear fusion. Only one of them needs to succeed at getting to the break-even point. Only one of them needs to succeed at making a viable fusion reactor. At that point, the world will start changing in a profound way.
It won’t happen all at once, but it will be one of the most welcome and overdue advancements in recent memory. I certainly hope that this advancement happens sooner rather than later. If nothing else, it’ll make the world feel less dire so that the other, sexier advances in technology can proceed.







An Artificial Intelligence That Can Debate: The Promise And The Perils
Even in an era as divided and chaotic as this, there’s still a place for reasonable debate on important issues.
Yes, I understand it’s hard to say that with a straight face these days.
Yes, I’ve been to comments sections, Reddit, and 4chan.
Yes, I know how ugly the discourse is right now, but that’s exactly why I’m bringing this up.
In general, people are curious. Even though they cling to cherished beliefs and refuse to change their minds when confronted with evidence, we’re still curious about things that are different. It’s not always honest, but it’s a powerful feeling. Even if you despise those on the other side of the debate, a part of you will still wonder why they hold the opinions they have.
That’s why debate is such a powerful tool. Humans are such a social species by nature. We’re hard-wired to interact, connect, and discuss things with one another, even when we don’t agree. It may frustrate us to no end, as anyone who has debated a creationist can attest. However, the fact we keep doing it is proof, in my opinion, that there’s still value in the process.
Regardless of how you feel about the merit and value of debating, the whole process might become more complicated in the near future. That’s because IBM, the same company behind Watson, the Jeopardy playing computer, just created an artificial intelligence that can debate at the same level as a skilled human debater.
Here’s an excerpt from a piece in TechXplore on this new system. It’s not as scary as some of the things we’ve seen from Boston Dynamics lately, but it’s still intriguing.
TechXplore: IBM’s AI debating system able to compete with expert human debaters
Now, before you get too nervous, it’s worth noting that this AI is far from the kind of advanced artificial intelligence systems I’ve mentioned before. This is not the kind of AI that will become Skynet or Hal 9000, no more so than Watson or AlphaGo. This is a system is very much a narrow AI, as in it’s made to excel at a specific task.
We have AI’s that can beat world class chess players and Jeopardy champions. This AI just happens to excel at debate. However, that has implications that go beyond simply outclassing the best human debaters in the world at the moment. In fact, this is one form of AI that might not need human-level intelligence to incur a major impact.
Take a moment to think about how erratic and inconsistent most debates are. No matter how intelligent or informed you are, it tends to get messy fast. That’s why so many comments sections and Reddit threads devolve into shouting matches and personal attacks. The end result is people becoming more angry and unreasonable, which can have major real-world consequences.
However, what would happen if every debate on any issue included someone who was better than the best debater on the planet? Even if the two people on each side of the debate were dumb and inept, such a presence would have a major impact on the discourse.
That’s because winning a debate has little to do with how well someone knows a particular subject. It also has little to do with how forcefully and clearly someone explains a topic. Again, people who debate creationists know this all too well. Winning a debate doesn’t mean proving your expertise. It means proving the merit of your argument.
An AI that can do that may not convince someone that they’re wrong about something. However, losing a debate tends to have a lasting impact. Just ask any aspiring politician. It can also lead people to question their beliefs, even if they still cling to them. That, alone, can be powerful.
For proof, look no further than the story of Megan Phelps-Roper, a former member of the infamously hateful and dogmatic Westboro Baptist Church. She was as locked into her beliefs as anyone could possibly be. She was raised by religious zealots and indoctrinated into strict religious dogma from the time she was a child. She’s not someone whose mind is prone to change.
Then, she got into a discussion with someone on Twitter of all places. That person began a conversation. It started as a nasty debate, but it evolved into something that led her to question her beliefs. Ultimately, she left that hateful and bigoted environment. She’s now an activist against the same religiously motivated hate that she once fostered.
It’s a powerful story, but one that couldn’t have happened without a debate. To date, people have only been able to have those debates with other people. Not everyone is equally skilled. In fact, I would argue most people are woefully unskilled at debating anything and I include myself in that category. I am not good at it, either. I freely admit that.
Now, there’s an AI system that can theoretically win any debate the same way other systems can defeat any chess player. That does hold promise if it can be used to temper the heated rhetoric that has caused real-life hostilities. At the same time, there are reasons for concern.
What side would this system be on?
Moreover, who decides what position these AI systems take?
If no one decides, then how does the AI determine which side on a debate it takes?
These are relevant questions because if you have an AI that can win any debate, then the side it takes really matters. That can be used for good when countering dangerous disinformation, like those from the antivaxx crowd or hate groups like the Westboro Baptist Church. Like any tool, though, it can be weaponized for ill.
I can easily imagine political organizations getting a hold of these systems and trying to use them to benefit their agenda. I can also see some trying to use it to spam message boards, social media, and Reddit threads to derail certain movements or arguments. That’s a powerful tool and we can’t be certain that those using it will use it responsibly. That’s the dilemma with all technology. It can be used for good and for evil. With technology like artificial intelligence, the stakes are a lot higher, as are the perils. This technology may not be as dangerous as a more advanced AI, but it could be a precursor to just how disruptive this technology can be.
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