HNHacker News
TopNewBestAskShowJobs

tsaprailis

559 karma · joined September 24, 2015

My blog/site: https://tsaprailis.com

Twitter https://twitter.com/ktsaprailis

submissionscomments
tsaprailis··on Blue Zones, where people reach age 100 at 10 times greater rates
I have read the same thing about Greece's Ikaria island centenarians.

As an anecdote my grandfather born in remote mountain village in mainland Greece in the 1900 was actually registered by his father having been born in 1906 as to avoid being drafted as long as possible to fight in the multiple wars fought at the time. So birth records and certificates from that time are not really trustworthy.

tsaprailis··on Image of a genome autosuspends you from Twitter
Oce you upload the image, you get immediately suspended with the justification that the post contains personal information. The weird thing is the image contains no text whatsoever, or anything for that matter that could associate the image as a genome. This is the COVID genome btw.
tsaprailis··on Ask HN: A New Decade. Any Predictions?
I think that one sector that has not been given much spotlight is space. I feel that space will get lots of more startups leveraging LEO in unexpected ways. The current rate of progress for the different launch systems, bring the cost/kg to orbit further down, as well as further satellite miniaturization/mass production will prove space as a new breeding ground for ideas that we cannot still think about, but I think in a decade from now we will be looking at space as on of the sectors pushing economic growth across the planet.
tsaprailis··on Ask HN: How to overcome fear of flying?
Funny how this thread surfaced now. I'm in a similar place.

I didn't use to fear flying until I got my first (and only) panic attack (not in a plane).

The trick I used to fight anxiety was walking around and it always worked for calming me down. But guess what, you cannot get for a walk on a plane so I started fear flights for a fear I might get a panic attack. Long story short after lots of workarounds and googling I found that there's a company called psious[1] (not affiliated with them other than using their product).

You cannot use their system on your own (I asked) you only use it with a psychologist/psychotherapist. Basically it works by exposing you to a simulated flight through VR and the psychotherapist helps you with tools like diaphragmatic breathing [2] and cognitive behavioral therapy [3] to ease your anxiety levels.

To be 100% open/clear I haven't flown yet since I started the therapy but I can tell my mindset has changed from trying to avoid flights at any cost to having booked flights and waiting (a bit anxiously :) but nowhere near at the paralyzing level) to actually fly.

[1]https://www.psious.com

[2] https://www.cmhc.utexas.edu/stressrecess/Level_Two/breathing...

[3]https://en.m.wikipedia.org/wiki/Cognitive_behavioral_therapy

Edit: formatting

tsaprailis··on SpaceX: Making Life Multiplanetary [video]
So the key takeaway for me today compared to 1 year ago, is that Elon has put a lot of thought on how to make this plan economically viable compared to just the vision last year. Multiple potential streams of revenue:

- Government/intragovernment contracts to cleanup space debris.

- Government/Private satellite launches.

- Earth to earth transportation which Elon announced on Instagram that the cost would be comparable to an economy fare. https://www.instagram.com/p/BZnVfWxgdLe/

- Transporting gear for ESA's moon base plan http://www.esa.int/About_Us/Ministerial_Council_2016/Moon_Vi....

- Transporting Government/Private equipment to Mars.

This is very much a realistic business approach compared to last year's vision presentation.

tsaprailis··on SpaceX: Making Life Multiplanetary [video]
I think this is a nod to ESA who has stated they want to build a base on the moon: http://www.esa.int/About_Us/Ministerial_Council_2016/Moon_Vi... Elon's message: "Here's the rocket, it costs this much, go build it". Basically trying to find more ways to monetize BFR.
tsaprailis··on Olin College Produces Founders at Five Times the Rate of Stanford
This. This article is one of those "Hey this area is the area with the lowest cancer rates".

But statistics tells us that small samples are more prone to extreme outcomes.

This seems to be a problem in all scientific fields, a quick google search came up with this article from Nature: https://www.nature.com/nrn/journal/v14/n5/full/nrn3475.html?...

tsaprailis··on Ask HN: When to create a legal disclaimer for side project
Thanks for this!
tsaprailis··on Inventor who built an Iron Man-style flight suit has flown it at TED
My question when I first saw this was where do you get such jet engines? They look small enough to be from any kind of plane/UAV, but also quite large for any small model aircraft.

I wonder how easy it is to get one, do you by any chance need any sort of special license to operate them?

tsaprailis··on With Neuralink, Elon Musk Promises Human-To-Human Telepathy
"So what facts am I missing? What makes it even remotely okay that Musk and Facebook are promising the public telepathy within a few short years?"

The author probably didn't read Tim Urban's WBW article[1]. Elon Musk never claimed that we were going to have telepathy n a few short years but rather that he was hoping that he would have some sort of BCI that would also be used by people who don't have some sort of disability.

"I think we are about 8 to 10 years away from this being usable by people with no disability … It is important to note that this depends heavily on regulatory approval timing and how well our devices work on people with disabilities."

"And Mark Zuckerberg gave a timeline of about 25 years. Mark Zuckerberg said: “I would be pretty disappointed if in 25 years we hadn’t made some progress towards thinking things to computers.”"

So I think the whole article has a clickbait-y theme, I would expect something more objective from the MIT Technology Review.

Finally as the author said Musk has indeed missed the deadlines on his achievements, but nonetheless also he manages to go through with his plans, both with SpaceX and with Tesla.

So even though I don't expect the neural lace in "a few short years" I think it will come eventually.

[1] http://waitbutwhy.com/2017/04/neuralink.html

tsaprailis··on Ask HN: Books you read in 2016?
I had asked a question[0] regarding books a few months ago which ended up in the following list[1]. From those so far I have read the following:

- Elon Musk: Inventing the Future - Ashlee Vance Totally worth to get insight into the Elon. Kinda changes the superhero/good guy image everyone has but you end up with more respect for him whatsoever.

- Thinking fast and slow - Daniel Kahneman Awesome book presenting modern psychology. You'll get insight into how humans work.

- Rework - Jason Fried, David Heinemeier Hansson Nice, albeit small book regarding how the creators of rails manage their company. So very nice insight.

- The Hard Thing About Hard Things: Building a Business When There Are No Easy Answers - Ben Horowitz I started reading this but it was too business centric for me so I stopped, however if you're a business owner it might be worth it.

- Vagabonding: An Uncommon Guide to the Art of Long-Term World Travel - Rolf Potts This is a nice/into book if you're interested into digital nomading, long term travel in general.

- The Black Swan - Nassim Nicholas Taleb This in my opinion is a superb book if you are interested in statistics/philosophy. He presents the chaotic structure of our world and why extreme events are more common than we think.Definitely suggested.

- The art of Learning - Josh Waitzkin This is a book that presents the Author's (Chess and Tai Chi Chuan World champion) way of learning. Has some pretty useful insight.

[0]: https://news.ycombinator.com/item?id=12415621 [1]: https://github.com/kostistsaprailis/non-tech-books-for-devel...

tsaprailis··on Ask HN: Has anyone sponsored a J1 specialist or trainee?
Not looking to hijack the OP thread here but could you provide some additional information on your case?

I'm thinking of attempting this next year (try to get a J1 visa) when I finish my Data Science MSc, so could you let me know how easy it was to find a company, how long it took you to find the position, what was the reason for your work (thesis, internship), what's your salary level compared to a normal position in the company etc

Also regarding the J1 visa it was my understanding that you have to return to your home country for 1-2 years before being able to apply for a H1B, is that not the case?

Any information is welcome. Thanks in advance

tsaprailis··on New XPS 13 Developer Edition Lands in Europe, United States and Canada
While I think that the Dell XPS is the most beautiful of the Dell machines, I think that the lattitude, especially the e7470 model[0] is a better development machine as they're more easily upgradable (at least regarding the RAM and SSD).

[0]http://www.dell.com/us/business/p/latitude-e7470-ultrabook/p...

tsaprailis··on Switching to Ubuntu
What's the switching to Debian learning curve like, regarding command line tools etc?
tsaprailis··on This is a graph of total global sea ice. The red line is this year
Thanks for this!
tsaprailis··on This is a graph of total global sea ice. The red line is this year
No, because if you read the twitter post it says: "Something is very very wrong." Where is that derived from? What the scientific theory that predicts that such a drop in the global ice sheet is very wrong? I'm not saying that something could not be wrong, but giving a graph and claiming that something is wrong is not very scientific. For all we know this could be very wrong, mildy wrong, no wrong, good etc

EDIT: For a) I took a quick look at the site but couldn't locate the graph. Again I'm not saying it's falsified, but pointing to the original source is always nice. If nothing more we could get some additional details.

tsaprailis··on This is a graph of total global sea ice. The red line is this year
a)Where are these data from? Why does this gentleman that defines himself as an environmentalist (possible conflict of interest?) not post the original source? I'm not saying these are false but it would be nice to know the source. The image reads NSIDC, where's the relevant link, and the relevant analysis from them? What's the chance of error?

b)What does this mean? Will we get some super-storm or something similar? A graph without the scientific theory that leads to an explanation is just an opinion at best.

Again I'm not trying to say that this is not happening but the way this is posted, to me seems to only grab attention, click-bait style.

tsaprailis··on Autopilot Full Self-Driving Demonstration [video]
There's also the longer (3:28) video with the Paint It Black theme: https://www.tesla.com/videos/autopilot-self-driving-hardware...
tsaprailis··on The World in 2076
Though it's always fun to read/watch such predictions, chaos theory suggests we have absolutely no clue as to what the future will look like. The black swan is a nice book explaining why predictions generally fail.
tsaprailis··on MacBook Pro is a lie
If I may ask which laptop do you currently use?
tsaprailis··on Visual Studio Code 1.6
Yes, thanks very much! I actually had those too, as a backup but I think different combinations for opening and closing (or in this case toggling into terminal, and back into the editor) are more cumbersome than simply opening/closing.
tsaprailis··on Visual Studio Code 1.6
Thanks for the feedback. I had assigned a different shortcut to "ctrl+`" so I was getting a different result that toggle.
tsaprailis··on Visual Studio Code 1.6
This might sound like a weird question, but after a lot of search I found no keyboard shortcut to toggle between the editor and integrated terminal. It sound like a I'm picky but it's a bit of a timewaster to have to pick up the mouse just to switch from editor to the integrated terminal. A most I could use an external terminal window but that kinda defeats the purpose of having an integrated one I think. Is there such a key binding?
tsaprailis··on The importance of science fiction to entrepreneurship
Very interesting read. It would be interesting to know if there are people here that can point to a particular book that gave them an idea for a startup or even a side project.
tsaprailis··on The Nobel Peace Prize 2016: Juan Manuel Santos
This is a very complicated issue. There have been many crimes committed by both sides. The FARC themselves came out with an apology on all the victims they have kidnapped over the years. I think the point of the prize is not to delete his older actions but rather to congratulate him for his attempts to finally bring an end to a civil war that has costed hundreds of thousands of lives over the years. Just like the rest of the prizes are given for specific discoveries by scientists, and not for their every discovery during their life's work, similarly his action on trying to end the civil war was deemed worthy. Additionally actions are judged relative to one another and 2016 has not a good year for peace actions.
tsaprailis··on Making Humans a Multiplanetary Species
I think the whole idea of space/asteroid mining is to use them eventually in space based manufacturing. The biggest cost of space exploration is actually raising a spaceship into outer space. If you just build it up there it's very fuel efficient to transport between space and to other stations/planets.
tsaprailis··on Making Humans a Multiplanetary Species
Well I think this will be more along the lines, Yes we want to be a multiplanetary species, and this is the rocket that will achieve this.

Go Elon!

tsaprailis··on The Python Paradox Is Now the Scala Paradox (2009)
Probably Elixir
tsaprailis··on Ask HN: Where do you go for learning about health and well-being?
This is a very open-ended question. I think you need to let us know you current state.

If you're just starting out, getting a book on working out and eating healthy will get you 80% of the result for 20% the effort.

If you're already experienced, again it depends. Some people have already been mentioned like Tim Ferriss, Dr. Rhonda Patrick, Peter Attia, Dom D'Angostino and many more.

However you need to have the critical thinking to weed out what and how you could safely try some new theory. (say Intermittent Fasting or whatever new theory)

And I think after some time/experience you can go and pick up papers and judge them for yourself.

tsaprailis··on Ask HN: Non-tech books that have helped you grow professionally?
Done! Thanks, I added a few more books I have missed. If you think I missed any more, let me know.
Page 1 of 2Next →