What happened to the promise of the early web and will we ever get it back? This week, a nostalgic, updated episode from October 2022.

The lasting influence of the compass and the evolution and future of navigation technology.

New developments promise sustainable networked homes and buildings that are easy and practical, but can we have them without sacrificing privacy?

A look at how the Iranian government is using high-tech surveillance tools against anti-government protesters, and the rise of "digital repression" by governments around the world.

Technology design and programming can often exclude communities of users — sometimes even those the technology is specifically designed to help. So how can technologists better meet the needs of all users?

How countercultures, subcultures and niche communities have shaped, and continue to shape, digital tech.

For the 5th instalment of our Butterfly Effect series, we look at how the 6,000-year-old invention and concept has come to shape how we keep our valuables safe — physically and digitally.

There's a powerful connection between our built environment and our mental health, and architects are approaching the design of buildings and cities to better serve people.

A lot of technological innovation is fueled by data. We look at how new approaches to data are fueling art, and fighting disinformation. From artist Giacomo Miceli's imaginary conversation created by AI, to Dries Depoorter's surveillance art, to Starling Labs' Benedict Lau and Adam Rose using blockchain technology to verify data.

Over 16 seasons of Spark, we've talked a lot about the evolution of tech and our changing relationship to it. We look back at some eerily accurate predictions of the future past, some out-there theories that turned into reality, and the hopes for technology that didn't quite pan out.