My latest posts

  • How dark is the universe – optically?
    How dark is the universe? Optically – for visible light. Far away from star light and reflected dust. Here’s an interesting perspective on electromagnetic (EM) cosmic energy density – just for optical wavelengths. And without any clarification of fuzzy bounds […]
  • Demystifying QFT – A quantum’s tail – no halfsies
    Here's a possible story which helps demystify quantum field theory. A personal visualization, which stays within the bounds of spacetime and avoids needless paradoxes. There are two key concepts to my sketch: the Grid and a quantum's tail. This post […]
  • Demystifying QFT – Grid as superconductor
    Here's a possible story which helps demystify quantum field theory. A personal visualization, which stays within the bounds of spacetime and avoids needless paradoxes. There are two key concepts to my sketch: the Grid and a quantum's tail. This post […]
  • Lecture series – blog news
    To address selected topical questions, there’s a new Lectures menu section. Drafts of two lectures are now available. The “Thinking like a …” series The “Say what?” series
  • Demystifying quantum mechanics? – a tale of tropes
    This post is about my ongoing physics research project. To tell a story (perhaps literally) which conceptually unpacks quantum field theory. That is, to develop a framework which: visualizes Wilczek's Grid (discussed in other posts) and demystifies the historical tropes […]
  • Wavepackets and uncertainty principle
    [Preliminary 11-11-2023] [“Quantum foundations” series] Table of contents Context This post was inspired by Don Lincoln’s latest YouTube video (below). Insights from quantum field theory (QFT) have helped me better understand strange aspects of quantum theory [1]. In particular, leaving behind […]
  • Island universe RIP – impact of awe-inspiring scales?
    Thinking of the latest announcements for Nobel prizes: physics, chemistry, peace … Can the mind-boggling, awe-inspiring scale of the universe improve the odds of our collective survival? An expanding overview effect? “I believe our future depends powerfully on how well […]
  • Does antimatter ‘fall’ the same as matter? – QFT and CPT symmetry
    [“Quantum foundations” series – QFT charge inversion] As discussed elsewhere (e.g., in “QFT – How many fields are there?” and comments), in the Standard Model, “there is one field for each kind of particle.” So, consider the positron – the […]
  • Star stuff within us – we are stardust
    • “We are stardust, we are golden, we are billion year old carbon” — Woodstock by Joni Mitchell as performed by Crosby, Stills, Nash & Young. • Space.com > “Are we really made of ‘star stuff’ and what does that […]
  • The degree of entanglement – quantifying an entangled system
    INTRODUCTION Remember pet rocks? So, what if someone gave you a gift, claiming it was even better than a Moon rock or Mars pebble. Something almost magical. An expensive novelty item. As advertised on TV: “Tangled Blocks” … go quantum! […]