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What if the most significant adverse changes humans have made to the planet aren't just visible, but also audible?
A recent study about blue whales led me down an unexpected path. What began as a fascinating discovery about whale songs became a much broader reflection on communication, cities, audio, artificial intelligence, and the changing soundscape we all share. This is the connection I wasn't expecting.
Cristina Costa
Jun 283 min read


AI that matters most isn’t the kind built for everyone — it’s the kind that quietly gives autonomy back to the few who depend on it just to get through the day.
If you don’t rely on a screen reader, captions, or assistive devices, it’s easy to see AI as just another productivity trend.
But for millions of people, a single accessibility update can be the difference between “I can’t do this alone” and “I finally can.”
That’s why this latest Apple announcement on Apple Intelligence–powered accessibility features stood out to me.
Cristina Costa
May 202 min read


Your earbud can already read your brain. Your work interface has no idea. That's about to change — faster than you think.
Your earbud can already read your brain.
Your work interface has no idea.
That's about to change — faster than you think.
Cristina Costa
May 82 min read


AI in business: between buying, building, and the invisible risk of bad security practices
“Buy or build” AI is no longer theoretical – it’s a strategic decision that shapes results, capabilities, and competitiveness. In Portugal and across Europe, many managers say they use generative AI, but few companies truly embed it into processes. At the same time, agents like OpenClaw raise new risks: bad habits, pasting internal data into public chats and entering credentials into external tools can expose confidential information without the company noticing.
Cristina Costa
Mar 312 min read
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