太太任教的中學想搞電競比賽，結果因為家長反對而作罷。這些家長實在太落伍了，今時今日電競絕對是專業運動，職業選手有大公司贊助又有大量粉絲，絕對是人生贏家。
E-Sports is still a taboo among many Hong Kong parents, who hold the outdated view that gaming is just waste of time with little reward.
（相中為鬥陣特攻中國隊，剛在昨天的世界賽八強戰中輸了給法國）
(China just lost to France in the Quarter Finals of Overwatch World Cup. Team pictured below.)
我可以唔可以同一年級學生解釋到點解主成分分析（principal component analysis）係條特徵值問題（eigenvalue problem）？
Wish me luck—I am going to try to explain intuitively to first-year econ majors why principal component analysis is an eigenvalue problem.
真正靠人工智能賺大錢：顯視卡製造商NVIDIA股價今日首次突破200美元 。去年其股價才70美元，兩年前是30美元！
How A.I. makes you rich: NVIDIA reached $200 for the first time today. It was $70 one year ago and $30(!) two years ago.
在經濟系教一年級數學並不容易，因為文科出身的學生不會無條件接受數學的重要性。上星期有學生問matrix transpose有何用，今個星期就有另一名學生就determinant問同一個問題。我記憶之中，自己在數學系上課時從來都沒有學生會問這樣的問題。
Teaching a first-year mathematics course offered by the economics department is not easy, because students will not unconditionally accept the usefulness of mathematics. This is particularly true for students with an arts background. I had, for example, received questions doubting the usefulness of matrix transpose and determinant. I have never heard of such questions back when I took similar classes from the mathematics department.
網絡安全專家Mathy Vanhoef今日公開了一個影響*全部*Wi-Fi裝置的漏洞，這個漏洞讓駭客可以在沒有Wi-Fi密碼的情況下解密透過Wi-Fi傳遞的信息。雖然沒有證據顯示這個漏洞已被廣泛利用，但在漏洞公開後相信這只是時間問題。目前的最佳自保方法：
一，連上加密網頁（HTTPS）才好登入網站；
二，最好連上Wi-Fi後登入虛擬私人網絡（VPN）。
A protocol-level vulnerability allows an attacker to decrypt protected messages by attacking the four-way handshake of WPA1 and WPA2. Now more than ever: use HTTPS and VPN!
我以為優生學（Eugenics）在二戰後已為世所不容，但在香港也許不一樣吧。畢竟港彥有云：「贏在射精前」呢。
I thought Eugenics is no longer an acceptable practice after WWII, but perhaps not in Hong Kong.
The sequential write speed of #SanDisk #Ultra #128GB #microSD is surprisingly fast, over twice that of the other 128GB card I have in hand, a Toshiba Exceria 128GB, in the Q32T1 benchmark. The figures seem too good to be true, but I have already repeated the tests 3 times for a total of 15 runs and the results still hold.
