I read the first paragraph and it seemed abit scientifically eccentric... sorry! because i only have layman's understanding. I wouldnt expect a science writer to phrase the conjecture as you did. Also, i couldn't find that xerox theorem is commonly used concept... No-Cloning Theorem ??? and also, as a layman, i have read that no quantum information can escape via Hawking Radiation. so... tripply confused and 27 more paragraphs to read?

Diamonds form at 200km /130miles, so that is teh deepest kinds of crystaline structures in earth's core. after that it's somewhere between hard fudge and 10 times more liquid than molten iron.it's a fascinating point. the seasonal biomass increase changes the earth's mass along the rotation axis and differentially on continents and in the pacific. there is alot of extra rain too. increases in rain in winter in places counteract it. It's not a very serious issue for earth rotation compared to geology and hydrology. a butterfly landing also changes the rotation speed, Brandon will measure it:D

Thanks. that's such a good demonstration and explanation. here is a pic of the fourrier transform of a starshield with what seems to be the first pic of an exoplanet, quite some time prior to the NASA managing with their project. images.gizmag.com/hero/gemini_planet_imager.jpg

That's precisely what i was thinking. Why do they have to place the starshade 50k kilometers away from the telescope, as the star is a tiny speck in the sky? couldnt they make the occluder smaller? The light from the star would fill the telescope mirrors and lenses with so much light, many artefacts would exist that bounce inside the telescope and any occluder that could be inside it, so it has to be in front, and if the telescope is 10 meters diameter, they have to place it 50k away. mm accurate spaceship positioning in space is possible, it's just a disproportionately difficult task.