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Comment: The extrenely low pass rate... (Score 1, Informative) 119

by AchilleTalon (#49384585) Attached to: The End of College? Not So Fast

(The extremely low pass rate for free online courses provides some evidence for this.)

The extremely low pass rate doesn't mean a shit. This guy is an idiot. The motivation to pass a course that doesn't cost you anything and is most of the time not required and even recognized is not the same as passing a grade. Many people are just sneaking around at MOOC, and it is perfectly acceptable. They start some course just to see. There is not requirements, verification you are having the prerequisite before enrolling into a course. You just cannot compare MOOC and traditional education on this basis. That is plain stupid and full of bullshit to do so.

Many people are dropping a course in the middle because they have other obligations and there is no consequences to do so. Some others are overbooking courses and then drop those they are less interested in, etc. This behavior is responsible for the low pass rate. And the low pass rate doesn't mean anything in the context of MOOC. Beside that, some MOOC courses are just badly designed. Some teachers are just taking the material they have for the on-campus course and put that on the MOOC and expect miracles without further involvement. They forget the on-campus course give students access to other resources which are key to success. Since they do not provide the same kind of support for the MOOC, no wonder many people are dropping before the end or end up investing more time than they should to complete the course. Those who haven't planned for such level of investment are just dropping or failing the course.

Comment: Re:Seems like this will work... (Score 1) 193

I agree. Air drone delivery is the current shittiest idea. Not energy efficient, subject to meteorological conditions, etc. If autonomous vehicle for delivery are not safe for pedestrians, flying drones are worst. It would be a better idea to invest into a road autonomous delivery system. Anyone has every received the Hitchhiker's guide to the galaxy from 500ft altitude on the head?

Comment: Re:Delivery drones (Score 1) 139

by AchilleTalon (#49366293) Attached to: How long until our skies are filled with drones?
Wrong, drones are not cheaper than truck delivery, it is rather than the opposite. Drones are not energy efficient, you have to lift and fly the products you want to deliver while truck delivery just tow the goods and products to the delivery point. It is a was of energy and I don't talk about the consequences of a failure in the delivery of a refrigerator when flying the fridge over a crowdy place.

Comment: Re:Wrong Focus (Score 1) 123

by AchilleTalon (#49366263) Attached to: SpaceX's New Combustion Technologies
Just in fact you never noticed, in 2001: a Space Odyssey, Clarke presumed dematerialization would exist. For what it means, it is very likely what he was actually telling us is exactly what I said. We will never get halfway to this. It is like he decided to imagine the non-existence. You shouldn't interpret this as if he just believe this would be possible. He just explained the conditions for interstellar travel requires to not be physical. From this point, agreeing on the fact we are no longer talking about a physical universe, we can imagine everything as he did.

Comment: Re:Best buy (Score 2) 197

by AchilleTalon (#49362439) Attached to: Best Buy Kills Off Future Shop

Apparently yes, even the original poster seems very sad to see them disappear as the end of his summary let us think:

"Still, it's sad to see such an iconic brand killed off like this."

I suspect he is an employee of Past Shop. I really don't see what Past Shop has to do with news for nerds. Any nerd is going at Past Shop for a fix? I am not aware of any. This is a last resort solution when you need a gizmo widely available and you need it NOW.

Comment: Re:Prepare to restore from backup often (Score 3, Insightful) 263

by AchilleTalon (#49351657) Attached to: Generate Memorizable Passphrases That Even the NSA Can't Guess

I'm sorry, but even if the hash seems hard to any human being, the way it was generated doesn't use enough entropy. Using the website fqdn or whatever combination reduces significantly the entropy, coupled with your master password in a predictable way and then generating the hash isn't sufficient at my humble opinion to say this is a secure way to generate a password. In particular, if someone has access to the resulting hash for many different sites. The result must be predictable, hence, the combination of the orignal factors cannot change.

This isn't better than a long passphrase.

Comment: Re:is this good? (Score 1) 159

by AchilleTalon (#49351571) Attached to: Many Password Strength Meters Are Downright Weak, Researchers Say

I know about a bank that forces you to pick a password starting with three digits numbers, then you can use letters. This is one of the most idiotic security rule I have every seen. First of all, it reduces the entropy significantly and second it forces many people to write down their passwords because they cannot remember them because of the three digits number rule. Or they pick the three digits from their birthdate, street number, phone number or something like that.

However, after three wrong trials, your account is locked and you have to go to your branch to get a fresh new password printed on a sheet of paper.

And for an unknown reason, you have to go to your branch, you cannot go at any branch or even head office. On another hand, you can get the password over phone.

I don't know who is the chief security officier, but I want his job.

Comment: Re:Who you gonna call? (Score 3, Informative) 138

by AchilleTalon (#49280537) Attached to: Windows 10's Biometric Security Layer Introduced
And the biometrics data hasn't have to be saved in clear anywhere, it can just be encrypted with a one-way crypto algorithm with the key to encrypt stored in the TPM. Then, the device collects the biometrics data, encrypt it with the key in the TPM and compare the resulting signature with the stored encrypted signature. If they match, you are the right guy, if not you are not authorized. Nobody can steal you biometrics data unless they temper with the hardware and introduce an hardware trojan horse. Getting the crypted data will not leak any useful information since it is equivalent to a very long password with very high entropy. A brute force method would take thousands years to crack it. And getting the key will not help since it is a one-way algorithm and the key is useless to decrypt.

Hokey religions and ancient weapons are no substitute for a good blaster at your side. - Han Solo

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