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Comment Re:Easiest for the instructor (Score 1) 166


One reason lectures are so popular is that they are far, far easier for the instructor.


Apparently, students are easy to fool, because my experience shows that it's easier to fill time with class discussion and "interactive lessons" than a full hour of lecture. Students find multiple choice lecture questions fun, and generally prefer it to lecture, but you have to cover a certain amount of content regardless, and you have a moral responsibility to train students not to have the attention span of a flea. When they go out into the real world expecting to be spoon-fed everything, they will fail.

Comment Re:Why it's non-obvious over Microsoft's prior art (Score 1) 408


Apple was trying to come up with a way to prevent butt-dialing and other unwanted device actions... Microsoft's video doesn't really show a slider. It shows touch buttons that look visually like sliders. But you can trip them just by touching in the active area for the desired state. This is shown in the video where the demonstrator runs their finger down a column of switches and they all switch. Apple requires an explicit "click and drag" operation to unlock.

Could you watch the video at 2:52 and explain how this is different from what you describe? Here is a quote from the video at 3:04:

"Having to use the sliding gesture makes the toggle slightly more difficult to use, but greatly reduce the chances of inadvertently switch the toggle."

Clearly, Apple won't be hiring you to represent them :)

Comment Re:Hello 911? (Score 5, Informative) 449


This is not how it works. I've called 911 on a cell recently, and on a land line around 10 years ago.
When I called on the land line, the operator asked, "Are you MY NAME?", which means she had my information INSTANTLY.
When I called on a "smart" phone, I had to tell the operator where I was, so she could forward me to the right jurisdiction, and there was a little hold time.
To me, this is a big difference, because the time I called 911 on the land line, there were two men trying to break my door down, and being put on hold would not have improved my confidence.

Comment Re:You know *nothing* about security (Score 1) 220

A correction:

6) Private keys can (and should be) protected with passwords, making them in effect a form of two-factor authentication (you HAVE the key, you KNOW its password). Passwords are a single factor.

The authentication tokens in "two-factor" authentication should be independent, and both should be required for access. Encrypting a key does not increase the number of tokens required for authentication.

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