Elektrine
Log in Register
Paige Chat Timeline Gallery Friends Email Drive DNS Private DNS Domains VPN Kairo Nerve
Remote

Hanno Rein

@hannorein@mastodon.social
mastodon 4.8.0-nightly.2026-10-06
  • Open on mastodon.social

#Astrophysics Professor at the University of #Toronto, Minor Planet 12249, #UTSC, #UofT, developer of the several #iOS apps, #pilot, #cycling, #climbing, #running, #Egyptology, #woodworking, #astrodon, #noAI. Posts are automatically deleted after two months.

0 Followers
0 Following
50 Posts
Joined October 30, 2024
Website:
https://hanno-rein.de
Exoplanet App:
https://exoplanetapp.com
ORCID:
https://orcid.org/0000-0003-1927-731X
GitHub:
https://github.com/hannorein
Open post
Hanno Rein @hannorein@mastodon.social
· 3w ago
This AI doomerism is completely misplaced. I hate AI. In its current form it’s inherently unethical. But I’m not afraid that it becomes conscious and wants to kill us all. What I am afraid of is that my doctor’s office is replacing the receptionist with AI and I can’t get through to a human when I need it most.
179
1
97
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2w ago
10
0
7
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
I’ve seen this a few times now: someone vibe-codes something, doesn’t know enough to evaluate the code, and then has the audacity to email an expert to invite them to review the code for them. 😡
74
12
42
2
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
RE: https://mas.to/@brian_gettler/116963836209710484 "AI future at U of T" "U of T’s AI Kitchen" "AI’s transformative capabilities" "U of T’s path toward becoming a responsible, AI-ready institution" The people in charge are completely nuts! They are just making up words like they are planning for an IPO but have no idea what they are talking about.
mas.to
43
7
18
1
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
I was at the #ISC26 High Performance Computing conference this week - first conference like this for me. Very interesting. Learned a lot. And I gave a talk on visualization which people seemed to like. But as one of the speakers pointed out, the exhibition hall starts to look like a plumbing convention. This image shows one of these "hyperscaler" computer racks. Each using >2MW of power. The use case is AI of course. And if you know me at all, you probably can guess my opinion on that.
56
6
30
1
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
So I’ve installed the original software from the original CD (which includes the SDK!) on a physical machine (I couldn’t get Win98 on a VM for some reason). And everything just works! The software is very old school. But hey, IT WORKS. The SDK comes with #gcc version 2.7! #retrocomputing
49
3
9
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
Given that, it's quite amazing that I was able to write several apps for it when I was in highschool, including a currency converter, just by looking at some example code that came with the SDK. #retrocomputing
36
4
4
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
@alda@topspicy.social I grew up in Germany but now live in Canada. I was unfortunate enough to be back home during the heatwave for a visit. The non-AC culture is bizarre. If you want to safe energy great, just don't turn it down to freezing levels like they do in North America. But during a 40+ heatwave, it's really not about comfort but safety for a lot of people. (I wonder what will happen when they figure out that an AC is a heatpump.)
27
0
5
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2w ago
Replying to
@arthurgron@mstdn.ca Huge tree indeed! Are you sure this came down 2 weeks ago? The cut looks kind of old.
1
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago

University #enshittification: the wifi was down/slow this week. Probably some firewall issue. The IT people sent out a campus wide email acknowledging the issue and stating that they have contacted their vendor. Because of course they outsourced it. They outsource absolutely everything. Zero in-house expertise remaining.

mastodon.social

Mastodon

32
6
11
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago

There is a new study out which shows that physics based weather prediction is better than #slop based predictions when it comes to extreme weather events. This shouldn't really be surprising to anyone who has studied physical or chaotic systems.

https://www.science.org/doi/10.1126/sciadv.aec1433

mastodon.social
36
1
26
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago

Baby snapper 🐢 and its big brother. #algonquinpark #ontario

mastodon.social
23
2
6
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@mayintoronto@beige.party Am I doing it right?
12
1
4
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago

I think most people here would probably agree that the AI bubble is about to burst at some point. But I’m not sure people really appreciate that governments will probably intervene because these companies are now considered too big to fail. So we’re all going to pay the price for this BS.

15
0
2
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago

I've made a small update to my Alt Weather Canada app. You can now add multiple widgets with forecasts for different locations on your homescreen. The app is still free, ad-free, tracking-free, AI-free, and open source!

https://apps.apple.com/ca/app/altweathercan/id6737521465

#ios #foss #canada #weather #onstorm

apps.apple.com
24
2
19
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago

Guess who saved another 14 Cisco VoIP phones from the dumpster. I don't know yet what to do with all of them... if anyone knows a small town who is in need of a telephone network...

13
3
4
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@andrewg@mastodon.ie 💯 On iOS I can never remember from which corner I need to swipe to get to a notification, or the control center, or switch apps, etc. Because None of those functions have any visual clues.
6
0
3
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Kohlrabi
6
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@daisy this also pretty much summarizes the issues with LLM in education. When grading assignments the feedback no longer helps the student to understand a topic, it just teaching them how to write prompts to satisfy their professor‘s grading scheme.
14
1
5
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago

New long-read article about light pollution and overcrowding low Earth orbit with satellites:

"This will limit our access to space forever," says Hanno Rein.

https://www.cnet.com/science/space/features/satellite-overcrowding-space-junk-low-earth-orbit-starlink/

cnet.com
17
0
24
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@tychotithonus@infosec.exchange maybe they should add a dictionary to their e-book library
3
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Good op-ed in the star today about why it doesn't make sense to seek a "deal" with a neighbour that can't be trusted. https://archive.is/Cj7JJ
archive.is
3
0
4
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Any suggestions on how I can get access to a Windows machine that runs on a CPU supporting AVX512 instructions? I don't usually use Windows, but I'd like to test my code on Windows. #hpc #windows
3
1
1
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago

I got another interview request regarding SpaceX orbital data centres. Clearly this is just hype for the IPO. So I’m a bit conflicted about whether I should agree to the interview or not. I don’t have anything good to say about the idea, but at this moment any publicity seems like good publicity. Any thoughts @sundogplanets@mastodon.social?

6
3
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Not great in this extreme weather year: GOES-East (GOES-19) experienced an anomaly, is not transmitting data, and restoration of service is TBD. There is a backup satellite apparently but I'm not sure how long it would take to switch over operations.
2
0
1
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
Source code: http://legacy.hanno-rein.de/old.hanno-rein.de/download/onhand/fcc_main.c
legacy.hanno-rein.de
2
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@belehaa@wandering.shop @nxskok@cupoftea.social I think ABCD/F grades would be a reasonable step in the right direction. Right now I need to give students x/100 marks. And it’s hard to argue as to why a student with an 80 mark is better than one with a 79. But I could probably defend an A vs a B grade. Definitely pass/fail.
1
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@vicgrinberg@mastodon.social Mein Garten ist nicht ganz so groß, die waren deshalb recht einfach zu finden... 😉
1
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@Jaimieserotica Maybe his battery has gone bad and can't be replaced because it's glued in?
3
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
@plaidtron3000@jorts.horse that must’ve been quite the sales pitch to Enron to get this listed as an option. And yes, the user interface is really bad. But to their credit, I don’t think there was all that much they could’ve done differently. The whole idea of having different apps on a form factor like this was just a bit ahead of its time.
1
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago

I got a few of these cooling pads from a doctors office. Ingredients are Calcium Ammonium Nitrate and Water. Can I use it as fertilizer? If so any suggestion on whether I need to dilute it?

2
2
2
0
Open post
Hanno Rein @hannorein@mastodon.social
· 4mo ago
Replying to
@mcfly@milliways.social This. And the touchscreens!
1
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@daisy @thepoodge @drmorrisj I found it easier to learn the topic than to learn how to cheat.
1
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@exchgr flipped = rotated in 3d
1
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@EinsTux@chaos.social Ha! I just found the same one here in a dumpster in Toronto. Works great and is now powering my home network and voip phones!
1
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@autiomaa@mementomori.social All of it I'm afraid!
1
2
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@nxskok@cupoftea.social Thirteen grades are still a lot! A+/A/A-/B+/B/B-/C+/C/C-/D+/D/D-/F. In most cases that really doesn't make sense. For example, if someone is getting their pilot license. Would you fly with someone who as a B- or a C+? Where's the line? Clearly the right answer is that a person is either competent to fly a plane or not. Also, I really like the point @belehaa@wandering.shop brought up elsewhere in this thread: You don't necessarily have to "fail" if you can't show competency -- you're just not a pilot.
0
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@thalia@discuss.systems I wonder if that is why spaces in fortran don't matter at all, even between keywords.
0
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
Replying to
@dacmot@sunny.garden Thanks, but I think the landscape has changed quite a bit in the last few months. The user agents are all fake now and the requests are coming from random IPs. So I suspect these are not the "big" AI crawlers anymore but some sort of distributed botnet for whatever purpose...
0
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@sundogplanets@mastodon.social I'll speak with him tomorrow :-)
0
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@thalia@discuss.systems Weird that the space character is just, well space. I didn't know that!
0
2
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@wilfredh@mastodon.social The answer probably correlates strongly with each person's age.
0
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@aoanla@hachyderm.io which is whining think a physics based model has a huge advantage. Even if it’s not as accurate on average it kept just the essence better.
0
2
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 1w ago
Software engineering in 2026. Everything has to be an API or an LLM, even if it could quite literally be 5 lines of code. #enshittification
0
0
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 3mo ago
I need some help: I'm self-hosting the documentation to a scientific software package https://rebound.hanno-rein.de This is for a small audience and it's a small, static website. Yet, crawlers have recently been hammering my server with stupid requests that make it very slow for normal users. The requests come from residential/VPN IP ranges and usually only include one request per IP. I want to block them, or slow them down. But I don't know how. 1/N
rebound.hanno-rein.de
0
1
4
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Due to some UI glitch my browser now persistently shows an emoji selector of angry emojis on all windows. Is it trying to tell me something?
0
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 2mo ago
Replying to
@plzupgrademe@fedi.txw.ca That's what I did in the end.
0
1
0
0
Open post
Hanno Rein @hannorein@mastodon.social
· 5mo ago
Replying to
@dkmackinnon@ottawa.place It's not just Doug Ford. This would open up the airport to all private jets. I'm sure the rich feel that it's too inconvenient to drive to Pearson from downtown. And taking the train is obviously beneath them.
0
0
0
0
Back
313k7r1n3
Elektrine

Tor hidden service

elekhj7afj4qnrr4yd3bkzslsyo5jgfxw3orgjkhlcxifueodybyiiad.onion

I2P eepsite

j6b6cyk6gjmepjih7jjadxgxvvf3lzzujljuu2v4biemzpg3naya.b32.i2p

Platform

  • Email
  • Chat
  • Timeline
  • VPN
  • DNS

Company

  • About
  • Contact
  • FAQ
  • Lite (no JS)

Legal

  • Terms of Service
  • Privacy Policy
  • Transparency Report
  • Report Abuse
  • Warrant Canary
  • VPN Policy

Support

  • support@elektrine.com
  • Report Security Issue
Mail client setup IMAP mail.elektrine.com:993 POP3 mail.elektrine.com:995 SMTP mail.elektrine.com:465
© 2026 Elektrine. All rights reserved. Server: 20:55:32 UTC