之前給《明報》的 一篇文章 ,只能算是一篇「報導」,篇幅所限,並沒有太多我的個人意見,現在談一下吧。
是次 blog 的討論,有部份其實已經離開了「門戶之見」的討論,有誰不知道 BSP 不代表一切,人才是中心?道理人人明白,
What a sysadmin's machine should be able to do has been on my mindrecently, because my group is working on getting everyone upgraded fromrandom creaky old hardware to modern PCs. (It's a somewhat contentiousissue in many quarters, because it's not obvious to a lot of people thatsysadmins need much more than a (graphical) terminal.)
At a high level, I feel that a sysadmin's machine should be able to burnDVDs, drive dual displays, and run fully virtualized

之前給《明報》的 一篇文章 ,只能算是一篇「報導」,篇幅所限,並沒有太多我的個人意見,現在談一下吧。
是次 blog 的討論,有部份其實已經離開了「門戶之見」的討論,有誰不知道 BSP 不代表一切,人才是中心?道理人人明白,
Hashcash schemes are anattempt to slow down the rate that spammers can send email by makingthem burn CPU time on some non-trivial calculation. This soundssuperficially attractive (and has ever since 1997), but will neverbe adopted; in fact, the idea is dead on arrival.
To see why, we only need to observe that hashcash has a disproportionateeffect on the heaviest senders of email; in fact, this is exactly whatit is designed to do. Now think of what this does