Jun Gao

1/ podcast

80000 hours: build career with a positive social impact

Making sense with Sam Harris

2/ books

originals by adam grant

multipliers

3/ data projects

learn from datakind

4/ advice on developing on leadership

Internal:

start a proposal & communication for stakeholders, and then take it to your manager

start a group organizing people to discuss and work on something

External:

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it is interesting to continue watching Dropbox and its financial statementsfor the past year and here is what I learned:

1/ revenue increasing 13.5%, cost around the same. revenue in 2021H1 is 135 million. (market cap is around 12 billion)
2/ The revenue growth can be decomposed into: paid user growth around 7.8%, ARPU around 7%.
This is different from what we learned a year ago. Half of the revenue comes from ARPU growth. (back then we learned from Ravi that revenue is driven by # of paid users)
3/ I have cleared out my position, since I think the price has arrived at the level appropriate for next 2 years.

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Argument: Time series can be very useful in Internet Industry?

As usual, we will list all the opposing arguments:

1/ Time series is a very narrow area(only for time series)

2/ Real time series forecast/detection problems, can only be solved based on a case-by-case manner

3/ Time series analysis was popular in Academia in 90’s. It becomes much less popular since then, especially comparing to CV and NLP. Also time series anlaysis frequentists lost the debate the Bayesianists.

4/ (Traditional) time series analysis is based on strong assumptions like: stationarity.

5/ Time series analysis methods like causality is not so useful.

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人应该勤奋地工作。这是我的观点

如果我不能够比全世界最聪明,最有能力,罪有资格反驳这个观点的人更能够正否自己,那我就不配拥有这个观点。

正方:

勤奋地工作能在其他条件相同的情况下,把工作做得更好,更容易获得更高的酬劳和更广泛的认可。(勤奋地工作)更容易让本人对工作认识得到提升,在相同时间内获得更深的认识,触发更深的思考。勤奋地工作能让人获得满足感,成 …

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