How Self-Driving Cars “See” the World
Modern cars bear little resemblance to their early ancestors, but the basic action of steering a vehicle has always remained the same. Whether you’re behind the wheel of a Tesla or a vintage Model T, turning the wheel dictates the direction of movement. This simple premise, which places humans at the center of control, may be ripe for disruption as tech giants and car companies race toward a future that would render human-controlled vehicles obsolete.
How does this next generation of self-driving cars “see” the road? Today’s video from TED-Ed explains one of the mind-bending innovations making autonomous vehicles a reality.
Eye of the Laser
Safely getting a vehicle and its passengers from point A to B is no simple matter.
First, weather and time of day can create a wide variety of challenging situations, affecting things like visibility, braking distances, or speed. Next, other vehicles, bikes, and pedestrians are constantly moving through the transportation network, sometimes in unpredictable ways. To further complicate matters, the road network is rarely in optimum form. Road lines fade and construction can throw ambiguous detours into the mix.
Sensing and analyzing the world at a granular level is crucial in making self-driving cars a viable transportation option. To solve this problem, new generations of autonomous vehicles are using photonic integrated circuits, as well as light detection and ranging (LiDAR) to generate an extremely nuanced picture of the road ahead.
How self-driving cars see the world. (Source: Hesai)
LiDAR – which is related to RADAR – uses short laser pulses to sense the depth and shape of objects. Essentially, scattered bursts reflect off objects around the vehicle, painting a detailed 3D picture of its surroundings. LiDAR’s depth resolution is so accurate that it could eventually see details at the millimeter scale.
A Dissenting Opinion
While most companies in the autonomous vehicle space have fully embraced LiDAR, Tesla has a divergent point of view. The company employs a combination of GPS, cameras, and other sensors to help its cars visualize the world.
LiDAR is a fool’s errand. Anyone relying on LiDAR is doomed.
– Elon Musk
Society and Self-Driving Cars
While companies like Uber and Waymo determine the functional mechanics of self-driving cars, the rest of society is left to ponder how this new technology will affect employment, privacy, and personal autonomy.
In the U.S., more than 70% of goods are moved by truck, and over 80% of commuters take a private vehicle to work on any given day. Even partial automation of the nation’s transportation network will have wide-sweeping impacts on the economy.
As AI-powered cars and trucks hit the streets at scale, how cars see the road will be a detail most of us will overlook. The bigger question will be whether we are ready for a society where we’re no longer in the driver’s seat.
Charted: What are Retail Investors Interested in Buying in 2023?
What key themes and strategies are retail investors looking at for the rest of 2023? Preview: AI is a popular choice.
Charted: Retail Investors’ Top Picks for 2023
U.S. retail investors, enticed by a brief pause in the interest rate cycle, came roaring back in the early summer. But what are their investment priorities for the second half of 2023?
We visualized the data from Public’s 2023 Retail Investor Report, which surveyed 1,005 retail investors on their platform, asking “which investment strategy or themes are you interested in as part of your overall investment strategy?”
Survey respondents ticked all the options that applied to them, thus their response percentages do not sum to 100%.
Where Are Retail Investors Putting Their Money?
By far the most popular strategy for retail investors is dividend investing with 50% of the respondents selecting it as something they’re interested in.
Dividends can help supplement incomes and come with tax benefits (especially for lower income investors or if the dividend is paid out into a tax-deferred account), and can be a popular choice during more inflationary times.
|Investment Strategy||Percent of Respondents|
|Total Stock Market Index||36%|
|Gold & Precious Metals||23%|
Meanwhile, the hype around AI hasn’t faded, with 36% of the respondents saying they’d be interested in investing in the theme—including juggernaut chipmaker Nvidia. This is tied for second place with Total Stock Market Index investing.
Treasury Bills (30%) represent the safety anchoring of the portfolio but the ongoing climate crisis is also on investors’ minds with Renewable Energy (33%) and EVs (27%) scoring fairly high on the interest list.
Commodities and Inflation-Protection stocks on the other hand have fallen out of favor.
Come on Barbie, Let’s Go Party…
Another interesting takeaway pulled from the survey is how conversations about prevailing companies—or the buzz around them—are influencing trades. The platform found that public investors in Mattel increased 6.6 times after the success of the ‘Barbie’ movie.
Bud Light also saw a 1.5x increase in retail investors, despite receiving negative attention from their fans after the company did a beer promotion campaign with trans influencer Dylan Mulvaney.
Given the origin story of a large chunk of American retail investors revolves around GameStop and AMC, these insights aren’t new, but they do reveal a persisting trend.
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