News
Researchers fold DNA into world’s smallest tic-tac-toe game
Researchers from The Qian Lab at the California Institute of Technology (Caltech) have used DNA folding, also known as DNA origami, to create the world’s tiniest game of tic-tac-toe. Since its creation in 2006 by Paul Rothemund, this technique has opened up the possibility of building “smart” programmable materials on the nanoscale using these self-assembling molecules. By capitalizing on DNA’s inherent tendency to pair with complementary bases that form its building blocks – guanine (G) pairs with cytosine (C) and adenine pairs (A) with thymine (T) – scientists can take a single strand of DNA and mix in smaller pieces that only attach to certain portions of the longer strand, called ‘staples’, pulling the single strand into the desired form. The team at Caltech has advanced this technique by enabling the forms to be changed, or “reprogrammed”, at will, enabling previously programmed DNA to be upgraded if needed. These advancements may help lead the way in areas such as developing DNA computers and the creation of new chemicals.
Over a period of around six days, each turn taking time for the DNA to reassemble, members of the Caltech research team played out the classic tic-tac-toe game, crowning ‘X’ as the winner. There were two techniques used: First, a set of DNA tiles (squares) were assembled to form the board. The tile assembly was accomplished using general folding techniques now common in the field and previously demonstrated on an advanced scale with the team’s Mona Lisa project wherein numerous tiles were assembled into the famous portrait. Second, the technique of ‘displacement’ allowed team members to insert new tiles, programmed with an ‘X’ or ‘O’ shape for a specific place on the board, to kick out the blank tile previously there. The full details of their accomplishment were published in the December 18, 2018 edition of the journal Nature Communications.
While DNA is generally known to contain the genetic instructions for building living things, as a molecule, it makes a useful tool for building tiny objects. The original shapes formed with the origami technique were 2D – smiley faces, stars, etc. However, in recent years, scientists have moved into increasingly complex 3D shapes – boxes, triangles, and even rabbits. The Qian Lab has additionally developed software that enables other scientists to easily program 2D assemblies from an image using the fractal methods demonstrated in the Mona Lisa project. The protocols output by the software can even be read by lab robots, completing the automation circle.
An animation of the Caltech team’s tic-tac-toe game:
One of the other long-term goals of DNA origami is to develop DNA robots or machines that can be programmed to act in specific ways inside the body. For example, a drug intended to kill cancerous tumor cells could be encapsulated in a DNA-folded box and only opened when tumor cell DNA matched its sequence-based lock. Combining the developments in artificial intelligence for identifying and predicting disease with the potential targeted delivery systems demonstrated with DNA origami, the future of technology in medicine is promising.
Watch the below video by Nature for an overview of the DNA folding process:
Elon Musk
Elon Musk’s The Boring Company closes Tunnel Vision Challenge
The Tunnel Vision Challenge invited individuals, companies, and governments to propose a tunnel project up to one mile long.
Elon Musk’s The Boring Company has officially closed submissions for its Tunnel Vision Challenge, confirming that a total of 487 entries were received before the deadline.
In a post on X, the company wrote, “Tunnel Vision Challenge is closed! 487 entries received – TBC team is excited to go through them all!” The company added that “We will select the top ~15 in the next week, and reach out with follow-up questions,” and that an “overall winner will be announced on March 23.”
The Tunnel Vision Challenge invited individuals, companies, and governments to propose a tunnel project up to one mile long with a 12-foot inner diameter. The winning entry will have its tunnel constructed free of charge.
Submissions could range from Loop passenger tunnels to freight, pedestrian, utility, or water tunnels. The only requirement was that the project clearly demonstrate how tunneling would meaningfully improve transportation or infrastructure between two points.
Just days before the deadline, the company provided an interim update noting that 407 entries had already been received. “Update on the Tunnel Vision Challenge – 1 mile of free tunnel! With 3 days left to submit, 407 entries have been received. Great to see enthusiasm for tunnels!” The Boring Company wrote at the time on X. By the close of submissions, the total had grown closer to 500 entries, hinting at strong interest in underground transportation solutions.
Entries are being evaluated on usefulness, stakeholder engagement, and technical, economic, and regulatory feasibility. Applicants were required to quantify projected benefits, such as time saved per rider or cost savings per shipment, and provide maps showing proposed alignments and other details. Submissions that included geotechnical or subsurface data are expected to receive additional consideration.
The Boring Company will fund the tunnel’s construction itself, though related infrastructure costs may be discussed with the winning team. The company also retains discretion to modify or cancel the challenge.
Cybertruck
Tesla confirms date when new Cybertruck trim will go up in price
Tesla has officially revealed that this price will only be available until February 28, as the company has placed a banner atop the Design Configurator on its website reflecting this.
Tesla has confirmed the date when its newest Cybertruck trim level will increase in price, after CEO Elon Musk noted that the All-Wheel-Drive configuration of the all-electric pickup would only be priced at its near-bargain level for ten days.
Last week, Tesla launched the All-Wheel-Drive configuration of the Cybertruck. Priced at $59,990, the Cybertruck featured many excellent features and has seemingly brought some demand to the pickup, which has been underwhelming in terms of sales figures over the past couple of years.
Tesla launches new Cybertruck trim with more features than ever for a low price
When Tesla launched it, many fans and current owners mulled the possibility of ordering it. However, Musk came out and said just hours after launching the pickup that Tesla would only keep it at the $59,990 price level for ten days.
What it would be priced at subsequently was totally dependent on how much demand Tesla felt for the new trim level, which is labeled as a “Dual Motor All-Wheel-Drive” configuration.
Tesla has officially revealed that this price will only be available until February 28, as the company has placed a banner atop the Design Configurator on its website reflecting this:
NEWS: Tesla has officially announced that the price of the new Cybertruck Dual-Motor AWD will be increasing after February 28th. pic.twitter.com/vZpA521ZwC
— Sawyer Merritt (@SawyerMerritt) February 24, 2026
Many fans and owners have criticized Tesla’s decision to unveil a trim this way, and then price it at something, only to change that price a few days later based on how well it sells.
Awful way to treat customers – particularly when they already sent out a marketing email announcing the $59,990 truck…with zero mention of it being a limited-time offer.
— Ryan McCaffrey (@DMC_Ryan) February 24, 2026
It seems the most ideal increase in price would be somewhere between $5,000 and $10,000, but it truly depends on how many orders Tesla sees for this new trim level. The next step up in configuration is the Premium All-Wheel-Drive, which is priced at $79,990.
The difference between the Dual Motor AWD Cybertruck and the Premium AWD configuration comes down to towing, interior quality, and general features. The base package is only capable of towing up to 7,500 pounds, while the Premium can handle 11,000 pounds. Additionally, the seats in the Premium build are Vegan Leather, while the base trim gets the textile seats.
It also has only 7 speakers compared to the 15 that the Premium trim has. Additionally, the base model does not have an adjustable ride height, although it does have a coil spring with an adaptive damping suspension package.
Cybertruck
Tesla set to activate long-awaited Cybertruck feature
Tesla will officially activate the Active Noise Cancellation (ANC) feature on Cybertruck soon, as the company has officially added the feature to its list of features by trim on its website.
Tesla is set to activate a long-awaited Cybertruck feature, and no matter when you bought your all-electric pickup, it has the hardware capable of achieving what it is designed to do.
Tesla simply has to flip the switch, and it plans to do so in the near future.
Tesla will officially activate the Active Noise Cancellation (ANC) feature on Cybertruck soon, according to Not a Tesla App, as the company has officially added the feature to its list of features by trim on its website.
Tesla rolls out Active Road Noise Reduction for new Model S and Model X
The ANC feature suddenly appeared on the spec sheet for the Premium All-Wheel-Drive and Cyberbeast trims, which are the two configurations that have been delivered since November 2023.
However, those trims have both had the ANC disabled, and although they are found in the Model S and Model X, and are active in those vehicles, Tesla is planning to activate them.
In Tesla’s Service Toolbox, it wrote:
“ANC software is not enabled on Cybertruck even though the hardware is installed.”
Tesla has utilized an ANC system in the Model S and Model X since 2021. The system uses microphones embedded in the front seat headrests to detect low-frequency road noise entering the cabin. It then generates anti-noise through phase-inverted sound waves to cancel out or reduce that noise, creating quieter zones, particularly around the vehicle’s front occupants.
The Model S and Model X utilize six microphones to achieve this noise cancellation, while the Cybertruck has just four.
Tesla Cybertruck Dual Motor AWD estimated delivery slips to early fall 2026
As previously mentioned, this will be activated through a software update, as the hardware is already available within Cybertruck and can simply be activated at Tesla’s leisure.
The delays in activating the system are likely due to Tesla Cybertruck’s unique design, which is unlike anything before. In the Model S and Model X, Tesla did not have to do too much, but the Cybertruck has heavier all-terrain tires and potentially issues from the aluminum castings that make up the vehicle’s chassis, which are probably presenting some challenges.
Unfortunately, this feature will not be available on the new Dual Motor All-Wheel-Drive configuration, which was released last week.
Elon Musk’s The Boring Company closes Tunnel Vision Challenge
Tesla confirms date when new Cybertruck trim will go up in price
