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1 or 2? Is Roger Penrose’s theory of three worlds the result of Penrose’s understanding of the physical world? 1. understands it correctly or 2. misunderstands it? — You can find explanations e.g. under the following link:


Es gibt praktische Fragen, die mit unseren konkreten Leben zu tun haben, und theoretische Fragen, die damit scheinbar nichts zu tun haben. Es gibt aber auch theoretische Überlegungen, die durchaus mit unserem praktischen Alltag zu tun haben. Eine davon ist die Drei-Welten-Theorie, die sich damit beschäftigt, in welchen Welten wir konkret leben.

Summary: A new gene therapy has restored vision in patients with Leber congenital amaurosis type I (LCA1), a rare genetic condition causing blindness. In a small trial, those receiving the highest dose saw up to a 10,000-fold improvement in light sensitivity and significant gains in reading and navigation abilities.

The therapy, developed by researchers, uses a virus-based system to deliver a functioning gene into the retina’s light-sensitive cells. The results show promise for expanding this treatment, with further trials planned to confirm safety and efficacy.

The development could enable precise, relatively low-risk treatment of brain aneurysms, which cause around 500,000 deaths globally each year. The medical condition – a blood-filled bulge on a brain artery that can rupture and cause fatal bleeds – can also lead to stroke and disability.

The study points to a future where tiny robots could be remotely controlled to carry out complex tasks inside the human body – such as targeted drug delivery and organ repair – in a minimally invasive way, researchers say.

Dark matter is the invisible force holding the universe together—or so we think. It makes up about 85% of all matter and around 27% of the universe’s contents, but since we can’t see it directly, we have to study its gravitational effects on galaxies and other cosmic structures. Despite decades of research, the true nature of dark matter remains one of science’s most elusive questions.

Humans are still learning from nature.

Researchers mimicked ancient fish scales for a 3D-printed concrete structure:


Concrete is a ubiquitous building material, but over time, it may become prone to cracking. In order to ensure the long-term durability and safety of concrete structures, it is essential to prevent or minimize cracking.