Yes, that Sasha 🍉

Non-binary 🏳️‍⚧️⬛🟪⬜🟨🏳️‍⚧️
They/them

Anarchist/your local idiot with a guitar

If you’re an Aussie

If you eat food

And if you live on Earth

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  • 149 Comments
Joined 9 months ago
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Cake day: December 12th, 2023

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  • I’m basically as old as gen z gets, '97. At home we only had dialup well after broadband was the norm, it wasn’t really worth using. Instead I learnt what the internet is and how it works at school in computer lab classes.

    I was probably 7 or 8 when I made my first web page on our school intranet, they really pushed for us to be tech literate. The coolest part about this is that I grew up so tech literate that I was fully qualified for a job as a developer despite having no formal training. I did one introductory programming class in uni for a free HD and that was basically it.

    Yeah, I absolutely understand the insanity of having the internet so available. We had it in my early days on school computers, but the real game changer has been smart phones. Being able to carry that information everywhere is the insane part to me.

    Parents were strict, but I got around it really easily. I just used the wifi details my dad used for my Xbox to connect my iPod touch. I grew up on YouTube and podcasts from iTunes.







  • I bought an E-Bike, the impulsive bit was not getting a normal bike.

    I kinda just figured it would be fun, and probably useful for some longer trips through the city. It ended up being one of the most empowering things I’ve ever owned, I have a pretty nasty health condition with lots of really bad fatigue and I live in a hilly area. I was able to look after myself to a whole new level, it was in almost every way a mobility aid for me, it made it possible for me to get supplies and meds on bad days it was a game changer.

    Anyway it got stolen a couple of weeks ago so that’s cool


  • I joined a climate activism group in my local area, frankly it’s the best possible way to deal with it. You can make a difference, the messaging we get is often intended to make us feel powerless to keep people from protesting, but it’s actually one of the most empowering ways to deal with it. Being with a group of passionate people amplifies your ability to effect change, and given how broken many of our governments are, it’s necessary. The biggest thing stopping us from forcing big changes is our lack of numbers, solidarity is strength.

    It certainly beats sitting around feeling angry and stressed.







  • Nah, I never even started a PhD mostly due to financial circumstances. But I’ve since realised I kinda hated academia because of untreated ADHD lol. I may go back to it one day after I’ve got treatment sorted but I really doubt it, I found my passion in music instead.

    I’ll try and ELI5 haha. Think of a black hole like a battery, stuff falls in to charge it and then it discharges by tickling empty space into creating particles. The problem is that the particles it creates seem to be random, which means it acts like a big delete button for the stuff that fell inside. Due to quantum stuff, this shouldn’t be possible, so some process could exist to encode the information about the original stuff onto the particles that leave the black hole. Importantly this doesn’t actually mean the particles that leave have to be the same as what fell in, you just need to able to look at them and then reconstruct it. Kinda like if you scrambled a book in a way which makes it look random, but is actually a secret code that still has the whole story contained inside.

    My research was to look for that information being written on the particles leaving the black hole, basically by comparing how space and time outside the black hole changes over time and seeing what it does to the tickling.


  • A really painful type of coordinate transformation I once had to develop to try and shed some insight on Hawking radiation near black holes.

    Unfortunately the results were fucking ugly and I gave up trying to understand them, largely due to the fact that except under very specific circumstances they’re basically impossible to calculate (you get something similar to divide by zero errors).

    Nice case:

    Not nice case:

    There was a ton more related stuff I could have spent a PhD working on, but life didn’t really allow it (and frankly I’m okay with that, I’m actually doing enjoyable stuff for the first time in my life instead of fighting my brain).


  • There’s basically no way to answer these questions using real physics I’m afraid.

    It definitely can’t close it’s mouth faster than the speed of light. Yes it would have a strong gravitational pull, almost definitely so strong that it would just collapse into a black hole and not be able to exist. If it weren’t that dense, then it would basically just be a big diffuse gas cloud that couldn’t do much anyway, it would basically have to be a proto galaxy to not collapse into one.

    If it’s using magic to exist, then anything is on the table.