The year that was in tech

Episode Summary

Executive Summary: This special year-end episode of BBC's Tech Life, hosted by Shona McCallum and Alistair Keen, reviews 2023's key tech stories, centering on generative AI's rapid evolution and its societal implications. The episode explores AI's dual nature—enhancing creativity while posing risks like job displacement, discrimination, and significant environmental costs from energy and water consumption. It also covers tech innovations in Kenya's 'Silicon Savannah,' including mobile money, blockchain for agriculture, and electric buses, alongside personal stories like the trauma of content moderators and ethical debates on life extension and autonomous vehicles.

Main Topics: Generative AI and Its Impact (Priority: 5/5): The dominant theme of 2023, covering the rise of tools like ChatGPT and Adobe's generative features. Experts debated AI's potential for good versus risks of job loss, discrimination, and malicious use, with discussions on necessary governance and regulation. Environmental Cost of AI and Data Centers (Priority: 5/5): Explores the immense energy and water consumption of AI systems. Highlights include predictions that AI servers could use half the electricity of current global data centers by 2027, and conflicts in Uruguay over Google's data center water use during a severe drought. Tech Innovation in Kenya (Silicon Savannah) (Priority: 4/5): Reports from Nairobi showcase Kenya's thriving tech scene: mobile money (M-Pesa), blockchain software to reduce avocado crop loss, electric bus company BasiGo, and digital banking startups, all leveraging renewable energy and a strong entrepreneurial 'hustle' culture. Autonomous Vehicles and Remote Driving (Priority: 3/5): Discusses the rocky progress of self-driving cars, including recalls and regulatory stops, and the emerging alternative of remote-controlled vehicles (by Vay) where a human operator drives remotely, which builds public trust. Human Cost of Content Moderation (Priority: 4/5): The story of Trevin Brownie, a Kenyan content moderator fired from his job, details the severe psychological trauma from viewing violent content and the lack of support, illustrating the hidden human toll of maintaining safe online platforms. Tech for Human Longevity and Pest Control (Priority: 2/5): Lighter stories include tech millionaire Bryan Johnson's quest to reverse aging with a team of doctors, and a British software engineer who used AI and ultrasonic devices to deter badgers and foxes from his garden.

Key Arguments: AI tools like generative AI are accessible and transformative, but require careful governance to ensure they serve humanity's interests and do more good than harm (Mustafa Suleyman). The risk of AI-driven extinction may be small, but real harms include discrimination and wealth inequality, similar to existing societal plagues (Margrethe Vestager). Large-scale AI systems are enormously energy, data, and labor-intensive, creating a hidden environmental footprint that is the great untold story of the AI revolution (Kate Crawford). Remote-controlled autonomous vehicles (with a human driver at a distance) build public trust more effectively than fully autonomous systems (Fabrizio Slesi). Content moderation work can cause severe, lasting psychological trauma due to constant exposure to violent and disturbing material, and workers are often inadequately supported (Trevin Brownie).

Data Points: Electricity consumption of AI servers: Half of current global electricity consumption of data centers - Prediction for 2027: Nvidia could produce enough AI servers with electricity consumption equivalent to half of all data centers today, amounting to about 0.5% of total global electricity. Google data center water usage: More than 7 million liters per day - Google's proposed data center in Uruguay would use this amount of public drinking water daily for cooling, during a severe drought. Avocado crop loss in Kenya: 40-45% - 30-40,000 metric tons of avocado per year are lost in unstructured markets, prompting a blockchain and AI solution to track production and reduce waste. Kenya's mobile money usage: Over 57% - Percentage of Kenyans using mobile money payments, highlighting the disruption when a cyber attack on the e-citizen portal affected transactions. Kenya's renewable electricity generation: Nearly 90% - Kenya produces nearly 90% of its electricity from renewable sources, with potential to reach 100% at night, supporting electric bus adoption.

Pivotal Quotes: "The sacrifices I made, I sacrificed my human side for this job. I don't think you can give any more than your soul." — Trevin Brownie: A former content moderator in Kenya describing the devastating personal cost of reviewing violent internet content and being fired without adequate support. "We are really looking at an enormous extractive industry for the 21st century." — Kate Crawford: Author and researcher discussing the hidden environmental costs of AI, including mining for minerals and vast energy/water consumption. "It could be the case that NVIDIA will produce enough AI servers to have an electricity consumption associated with those servers equivalent to half of the current global electricity consumption of data centers." — Alex de Vries: Academic warning about the potential explosion in AI's energy demand by 2027, comparing it to the size of a country like the Netherlands.

Implications: Listeners are urged to consider the hidden costs of AI—environmental, human, and ethical—alongside its benefits. The episode highlights a tension between tech-driven progress and sustainability, underscoring the need for regulation, worker protection, and responsible innovation in 2024 and beyond.