This is a collection of subjects that interest and impress me extremely. I give a brief description, and then leave a link so that you can investigate and ultimately become floored in awe alongside me.

#### Universality and Emergence

I’m hardly an expert on this topic, but I suppose it falls under my field of academic specialization, so I’m a casual appreciator.

**Universal Computability** // It is also known as “Turing Completeness”, and it is a property of a Turing System (or “Turing Machine”) in that any data-manipulation (more pragmatically, any program), in any form, that is computed in one Turing System, can be computed in every other Turing System.

**Emergent Behavior** // The hoopla about this was all about “AI sentience”. That could well happen, but in this context, though — I find Emergent Behavior fascinating because it can lead to extremely remarkable properties emergent of otherwise rather mundane systems.

**Nicolas Loizeau’s Turing Machine built of cellular automata** // This is a Turing Machine capable of the aforementioned Universal Compatibility. What makes this so interesting is that it was built entirely within Conway’s Game of Life — a cellular automata. The GOL is a remarkably interesting toy, but what’s so *sexy* about it is that an emergent property of this completely useless entropy toy is… *Turing Complet*eness!

## Interesting planets and systems

I’m not an astrophysicist by education frankly I don’t think I’m cut out to be one, but I am a huge space-geek, so here are some absolutely insane systems.

**WASP-76B** // It’s a gas giant about 0.92 the mass of Jupiter. What makes it so interesting is that it has a closed-rotation orbit; because of this, liquid iron will sublimate on the sun-side, and *rain down* on the dark side. It can get as hot as 2700 Kelvins — *awesome*!

**ZTF J1406+1222** // This is a binary is a pulsar orbited by a companion star — however, they orbit so closely, that the pulsar is “feeding” from the other star, slowly draining it of quarks and plasma. This mass will sustain the neutron star; neutron stars are spinning incredibly quickly and oftentimes suicide by violently spewing out the entirety of their mass; feeding of other stars sustains them. This is why it is called a “black widow” binary; it’s a fun name. What makes this particular widow binary so special, though, is that it has an orbital period of *62 minutes*! That is absolutely insane!