HNHacker News
TopNewBestAskShowJobs

fr0sty

2,995 karma · joined December 29, 2009

submissionscomments
fr0sty··on Getaround, The AirBnb For Cars, Launches
I cannot imagine that they are going to be able to carry insurance that will actually cover "anything [that] were to happen to the car".

Sounds like a great concept but, as always, the devil is in the details.

fr0sty··on Many don't have $2,000 for a rainy day
Unless you are carrying low/no interest debt you should really pay it off rather than put money into savings.

As long as your bank is not evil and keeps dropping your credit limit as your balance decreases you can always borrow again against that line of credit if needed.

fr0sty··on Many don't have $2,000 for a rainy day
The timeframe from the article was 30days. which make 401k or IRA funds available. If you can't sell your car in 30days you are not trying.

Also, most Brokers will allow you to borrow against the value of your IRA, or your 401k with very short notice. If you have a house and a mortgage you probably also qualify for an unsecured line of credit and could get a cash advance immediately.

The surgery example is a non sequitur because hospitals have very liberal payment terms and are willing to negotiate costs down significantly for people with financial hardships.

fr0sty··on Many don't have $2,000 for a rainy day
I wonder whether or not there is a difference between the 'ability' and the 'perceived ability' to raise cash quickly.

Many people are cash-poor, yes, but I am surprised that over half the population has no cash equivalents, hard assets, or access to credit (even from a relative or friend).

N.B. This is not meant to be financial advice, but just to point out that people usually have many more options than they think they do.

fr0sty··on Want Hacker News Comment Scores Back? Check out HNPoints.com
A suggestion that has been given (which I second) is to have 'bucketed' scores above some threshold:

-4,-3,-2,-1, 0, 1, 2, 3, 4, 5+, 10+

fr0sty··on Stallman's Dystopia
I'll point to the music industry for prior art: Originally, the CD you purchased was your to enjoy in perpetuity unless you chose to resell it. Current 'state of the art' is either:

A. Purchase a streaming 'membership' where you only have the right to personally stream music from a remote server

B. Purchase encrypted, non-transferrable 'tracks' which will become unplayable when the company supplying them stops running their servers.

There are still avenues (Amazon mp3) which do not take this approach (DRM), but you still cannot legally resell the goods you purchased.

fr0sty··on Stallman's Dystopia
> You can lend your Kindle out all you want and let people read your books, just as you could before.

Only until that becomes a violation of Amazon's TOS, or reading your books requires you be 'authenticated' with a rights server.

These things happen in steps and just because it works now does not imply that is will continue to work next week/month/year.

fr0sty··on My daughter was first sued in the womb
The title here is both a direct quote from the essay as well as the title given to the essay by the author when he shared it on twitter:

http://twitter.com/ftrain/status/69952439767404544

fr0sty··on Why we've reached the end of the camera megapixel race
He mentioned "blur" specifically which is a function of shutter speed, not shutter lag, the latter being the time between the press of the butten and the photo being taken.

This too has improved over the years. The largest source of lag is the time needed to focus. Most, if not all cameras will focus with a half-press of the shutter release and will take the photo when you press down fully. This helps in some, but not all cases.

fr0sty··on Why we've reached the end of the camera megapixel race
that is a 'sensitivity' race, actually...

Shutter speed, ISO, and Aperture in photography are related in much the same way as Voltage, Current, and Resistance.

To change any of those three (in your case shutter speed) you have to compensate in one or both of the others. Lens aperture is limited mainly by form-factor (can't have a large aperture in a tiny zoom lens) and is therefore rather constant across Point-and-Shoot cameras. but Sensitivity can be improved by having higher-quality sensors and supporting circuitry.

My first P&S camera had a maximum ISO of 400 and was very noisy at that level. my first DSLR did 1600 (4x as sensitive) and the current bleeding edge is 128000 (8x more sensitive again). Even in inexpensive point and shoot maximum ISO seems to be around 1600 (or more).

fr0sty··on The stock market is controlled by algorithms that are fighting with each other
Brokers guarantee VWAP only if they also are paid a very healthy commission. They generally lose to VWAP, but makeup for it in premiums.

Plus, if you are dealing with a large broker they may just cross your order with an offsetting order (or their own position, execute nothing in the market and keep the entire premium.

fr0sty··on The stock market is controlled by algorithms that are fighting with each other
And how far is "not terribly far"? Pennies? Nickles? Dimes? Dollars?

I can say with a great deal of confidence that a "random" VWAP algorithm would, on average, suck.

fr0sty··on The stock market is controlled by algorithms that are fighting with each other
"Could make a small fortune..."

This spikes my BS mater just a bit. Are any of these people actually doing this? Doing it consistently? Making a fortune? (How small is small, btw).

If there was free money for the taking, someone would be taking it and squashing the opportunity out for the others. It's how markets (and especially the stock market) works.

fr0sty··on The stock market is controlled by algorithms that are fighting with each other
Citation needed for your assertion that VWAP is "REALLY easy to achieve".
fr0sty··on Open Letter To New Programmers
> I've been doing this for 30 years and have never lost anything.

Just because it works for you doesn't mean it's good advice. I don't doubt copy+paste has worked for you for $LONG_TIME but I wonder whether you would say the same thing if you had started using $VERSION_CONTROL_SOFTWARE $LONG_TIME ago.

Having finally gotten into the habit of doing all my development with the help of version control I can't imaging going back to copy+paste or project/backup/YYYYMMDD. Yes it works but all it is is a poorly, and incosistently implemented manual version control system with none of the advantages of a real VCS.

fr0sty··on LastPass Disclosure Shows Why We Can't Have Nice Things
I'm not the OP, but I use KeePass+DropBox.

The encrypted database is local and synced everywhere. If DropBox goes down I have to fall back to another transport, but I am never "locked out".

fr0sty··on The iOS weather-app market
>"The main problem with [iOS] weather apps is that there are too many and 99% of them suck."

The Android weather-app market is quite similar. Lots of apps and they all suck (so far as I can tell). I'd love to find that gem too, but I don't hold out much hope...

fr0sty··on Tell HN: Please bring back comment scores
> Learn to survey, skim, and dive in. All your endeavors will be the better for it.

Then why sort comments at all? just order them in date order (or the reverse) and be done with it. Let the reader decide what is useful and what isn't.

Seems like having comments sorted in an implicit order of 'goodness' (even if there is no score) would handicap people in the development of their ability to 'survey, skim and dive in'.

fr0sty··on Tell HN: Please bring back comment scores
No one on this thread has picked up on the 'range' suggestion by Maro yet, so I'll add a thought:

For my purposes, displaying actual scores within the range -4 -> 10 would be sufficient. the low end is already capped, and the high end could either just have a ceiling of 10 or a score of 10+.

I am occasionally a "someone is Wrong on the internet!"[1] type and my inclination to wade in is directly proportioanl to the perceived traction of the inaccuracy. Without such a heuristic the choices are: reply to all, none, or a random sample which result in "poor information", "needless pedantry", and " undefined behavior" respectively.

[1] http://xkcd.com/386/

fr0sty··on Tell HN: Please bring back comment scores
> The problem is that part of what you like about not displaying the comment scores is the apparent effect it has on other people's behavior.

That, I believe is more correct. I miss the scores, personally, and found them rather useful.

fr0sty··on Amazon’s $23,698,655.93 book about flies
Please update your facts. Almost every online broker offers real time pricing for US equities and some even provide the depth of book. What you say above (15minute delayed quotes) was true several years ago but things have changed.
fr0sty··on What Happens When Solar Power Is as Cheap as Coal
This has actually been a major issue in light of the recent damage from the earthquake/tsunami. Poser generation on the 50hz half of the country has been greatly diminished and the frequency matching stations have insufficient capacity to meet demand.

http://www.npr.org/2011/03/24/134828205/a-country-divided-ja...

fr0sty··on Dear Internet: Take the reset buttons off your damn forms
Another favorite of mine is the forums that have a 'quick reply' box on a thread with a giant "Post Reply" button just above it and a smaller "post quick reply" button at the bottom right.

Guess which button throws away all of your work.

fr0sty··on Dropbox + git = Designer Luv
Gitosis is obsolete.

If you are starting frsh, set up gitolite servers instead. Gitolite is actively maintained and has more features and better documentation.

fr0sty··on California may be the next state to lose its Amazon affiliates
"tax avoidance" is a synonym for "tax compliance".

Do you take your allowed deductions on your tax return? or use tax-deferred investment vehicles like IRAs or 401Ks? Do you report your investment losses?

If so, why is your tax avoidance acceptable and GE's not?

fr0sty··on Play Git Like A Violin
"git clean" does nothing without -f, or the user changing clean.RequireForce=false

"git reset" does nothing irrevocable unless you add --hard (why should you also need to add --force?)

"git checkout" will only trash uncommitted changes if you ask it to specifically. (e.g. 'git checkout <file to overwrite>').

side note: using 'git reset --hard' to teleport a branch around is bad form, imho.

fr0sty··on Play Git Like A Violin
'rm' prompts by default? since when?

Btw, which defaults are, in your opinion, "bad"?

fr0sty··on Why You Should Never Buy a Home Again
I think the GP was saying that the landlord was announcing a 10% increase in rent with only 30 days notice not an increase of rent for the last month of the lease.
fr0sty··on Use git+github in the classroom
I am not advocating any sort of Zero Tolerance policy (e.g. "instantly failing") for this. In fact, I think ZT is insane in most if not all cases.

For the purposes of this discussion (which was about having students use version control for assignments) using version control is as central to the requirements as implementing the algorithm and using the assigned language and failure to follow instructions can, at the instructor's discretion, result in grading penalties. As a bonus, this adds another hurdle for cheaters to clear and provides another opportunity for profs/TAs to notice anything suspicious.

Hope that clears some things up...

fr0sty··on Use git+github in the classroom
> That requires professors to be much "tougher" than they often like to be.

If a prof/TA can't be bothered to police their students then they forfeit any right to complain about cheating.

If students can't follow directions (give grace on the first offence, maybe) then letting them slide does a disservice to their future.

As for cheaters: I don't mind whether or not really determined cheaters can sneak through. They are only cheating themselves in the long run. A system that only catches the 'honest' kids is still a good system because only the 'honest' students will generally make any attempt to mend their ways.

just my $.02

← PreviousPage 16 of 19Next →