# Björn Jeffery

> Björn Jeffery is a Swedish technology columnist, advisor, and Toca Boca co\-founder, writing about technology, business, consumer culture, and AI\.

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## Pages
- [About](https://www.bjornjeffery.com/)
- [Boards \& Investments](https://www.bjornjeffery.com/investing-boards/)
- [Advisory](https://www.bjornjeffery.com/advisory/)
- [Contact](https://www.bjornjeffery.com/contact/)
- [My Newsletter](https://www.bjornjeffery.com/newsletter/)

## Posts
- [Hemnet’s crisis is self\-inflicted](https://www.bjornjeffery.com/2026/06/23/hemnets-crisis-is-self-inflicted/): Sweden’s dominant property platform Hemnet has lost the trust of its estate agents through years of price hikes and strategic missteps – and the Competition Authority investigation is only the latest sign of a deepening crisis\.
- [Elon Musk’s grand plan is revealed](https://www.bjornjeffery.com/2026/06/12/elon-musks-grand-plan-is-revealed/): SpaceX's IPO reveals a company that has quietly transformed from a rocket company into a conglomerate for Musk's broader ambitions – and the space business is now the smallest part of the story\.
- [The rocket in Kista: up 2,400 percent](https://www.bjornjeffery.com/2026/06/09/the-rocket-in-kista-up-2400-percent/): Swedish semiconductor company Sivers Semiconductors has surged over 2,400 percent after being discovered by WallStreetBets – making it Sweden's first international meme stock, and setting it up for a potentially brutal fall\.
- [The best savings tip has become a risk](https://www.bjornjeffery.com/2026/06/06/the-best-savings-tip-has-become-a-risk/): The tech concentration in index funds has grown dramatically, and the coming SpaceX and Anthropic IPOs could accelerate the trend – turning the classic savings advice into a source of hidden risk\.
- [The sharp warning rings hollow](https://www.bjornjeffery.com/2026/06/05/the-sharp-warning-rings-hollow/): Anthropic calls for a pause in AI development follow a familiar pattern of alarming warnings paired with accelerating fundraising – raising the question of who these warnings are really for\.

## Categories
- [Tumblr](https://www.bjornjeffery.com/category/writing-archive/tumblr/)
- [SvD Näringsliv](https://www.bjornjeffery.com/category/writing-archive/svd-naringsliv/)
- [Good Old Trend](https://www.bjornjeffery.com/category/writing-archive/good-old-trend/)
- [The Daily](https://www.bjornjeffery.com/category/writing-archive/the-daily/)
- [Newsletters](https://www.bjornjeffery.com/category/newsletters/)

## Tags
- [AI](https://www.bjornjeffery.com/tag/ai/)
- [sweden](https://www.bjornjeffery.com/tag/sweden/)
- [apple](https://www.bjornjeffery.com/tag/apple/)
- [crypto](https://www.bjornjeffery.com/tag/crypto/)
- [elon musk](https://www.bjornjeffery.com/tag/elon-musk/)

## Optional
- [Sitemap index](https://www.bjornjeffery.com/sitemap_index.xml)