Arav
Arav
@aravkh.bsky.social
Mathematical physicist in training. Animal rights activist.
an infant being recorded earlier this year.
December 30, 2025 at 7:19 AM
The light signatures of the Atolla jellyfish attract the giant squid as it usually indicates the jellyfish is being attacked by another fish, becoming the squid's prey. The colossal squid, known to be the largest mollusk, has still not been recorded alive in its natural habit, with the exception of
December 30, 2025 at 7:19 AM
artificial intelligence has severely limited my engagement with and knowledge of machine-assisted proof-writing. From where I stand, however, mathematics seems less exciting to me than it ever has been.
December 30, 2025 at 5:28 AM
thinking hard about such problems, sometimes being eventually lucky as to have a flash of creative insight. One cannot help but feel a tinge of gloom when introduced to a machine that makes the problems more trivial. It may very well be the case that I am being naive; indeed, my general aversion to
December 30, 2025 at 5:28 AM
certainly complex and large-scale problems that would benefit from machine assistance, but in the grand scheme almost no open mathematical problems represent anything more than an inconsequential, non-urgent curious puzzle. The reason many of us fell in love with the field was the experience of
December 30, 2025 at 5:28 AM
answer to. I first encountered the technique in Scott Young's seminal book "Ultralearning", and have employed it in my learning process for next semester's courses. More on the pre-testing effect: learninglab.uchicago.edu/Pre-Testing_...
learninglab.uchicago.edu
December 26, 2025 at 1:29 AM
Some more incredible screenshots:
December 25, 2025 at 12:00 AM
The deep-sea Chimaera. Electroreceptor cells on the snout of the Chimaera help them to find prey. This one, in particular, seemed to be interested in the device being used to capture the video, and came quite close to the camera.
December 24, 2025 at 11:58 PM
Iridogorgia maginspiralis, a coral species found in the Marshall islands.
December 24, 2025 at 11:58 PM
The faceless cusk, found in the depths of the Indian and Pacific oceans. They are known as "faceless" due to their small eyes being hidden beneath their skin.
December 24, 2025 at 11:58 PM
engaging in a conversation with a conscious agent is gradually becoming more important.
December 24, 2025 at 8:54 PM
refrain from anthropomorphising the AI by beginning my prompts with "Output an answer regarding how the user should....", rather than "can you tell me how I should..." for my own sake - our collective ability to remember that we're really just throwing inputs into a complicated program and not
December 24, 2025 at 8:54 PM
similar things - isolated and taking antidepressants, moving at a turtle's pace through a physics/mathematics degree, and looking to interesting ideas (and people) to engage with. The prospect of doing a doctorate in mathematical physics keeps me going. Thanks for the continued inspiration Dr. Baez.
December 23, 2025 at 10:21 AM
It's weirdly comforting to hear that from such an accomplished individual, and to hear that true love exists. I can definitely see why music would have been a great escape at the time, with Led Zep, Van Halen, and the like dominating the charts. Without getting too personal, I've been experiencing
December 23, 2025 at 10:21 AM
cost of living, existential threats, high mental illness prevalence, and more, privilege and stability are definitely quite strong bottlenecks in determining whether one is able to healthily meet the 'full-time student' demand.
December 23, 2025 at 1:23 AM
a challenging problem can be eased without explicitly asking for the answer, in ways that optimise for time but remove the opportunity for one to gradually connect the dots themselves "can I have a hint?". With the burdens of 2025's state of affairs - high population/competition, "grind" culture,
December 23, 2025 at 1:23 AM
struggle to understand the big-picture relevance of a new concept and its relationship to other concepts can be outsourced in large part to ChatGPT, leaving students less able to make subtle judgements and connections on their own. Even the uncomfortable experience one has when trying to solve
December 23, 2025 at 1:23 AM
For me, the most interesting part of your take was the characterisation of ChatGPT as a "de-skilling device". It is certainly quite interesting that even the students who don't adopt the explicit "generate my essay" approach may still experience atrophy in subtler ways; for instance, the initial
December 23, 2025 at 1:23 AM
days or sleepless nights. I have 'Gauge Fields, Knots, and Gravity' on my reading list for next year after - looking forward to it!
December 23, 2025 at 1:09 AM