- 立即开始存钱,每月至少15%,甚至是貝版说的30%,最好是自动转,这样自己一开始就看不到,不会失落。充分利用复利的力量
- 节俭+勤劳(貝版真是典型的中国人,甚至说话语气都跟我一位疯狂投资的同事很像)
- 不要像忙头苍蝇,觉得某个领域发展前景好,就投某个领域,例如觉得电动车行业火就买tesla的股票(虽然前阵子真的涨疯了),而买单股之前连财报都不会看,这是新手投资典型错误(躺枪,幸好及时止损)
- 不要想着去beat the market,follow the market已经很好(不过这次401k大概变201k了,不过之后应该回暖)
- 绝大部分mutual fund/ hedge fund没有标准普尔index fund(或者其他一些index)有盈利能力,买vanguard妥妥的
- 很多mutual fund的broker并不会去买自己的fund,就像餐厅老板不吃自己餐厅做出来的菜,说明连他自己都有信心;broker并没有为你赚钱的义务,甚至说你跟他的利益很多时候是冲突的,他想着怎么给fund给自己赚钱,所以选择的策略对他有利,而你想着他全心全意为你赚钱,实则是自己骗自己。虽然他跟你advertise的时候是这么说的,但说一套做一套;买mutual fund要注意各种小费用,1%都能产生很大的影响,那就是mutual fund从你的获利里抢钱的方法。有网站专门帮你算
- 401k其实是boomer时代的产物,但我们还是可以充分利用它。看清楚自己的401k是不是有一堆费用,是的话可以问公司可不可以换到其他公司的401k方案,看清楚这个401k可不可以投index fund,有的多收你钱。其他有cash balance plan / Target Date Fund。(Roth) 401k。(Roth) IRA。
- High-Frequency Trading - machine learning:毫秒级决策,拼网络速度(The Hummingbird Project)
- annuity并不是全都不好(其实没听过)
- 典型误区:风险跟收益并不一定成正比,低风险也有可能高收益,很多有钱人的clever money就流向这些地方
Frank's Adventure∎
post @ 2020-03-16
post @ 2020-01-29
After you deploy a CNI plugin into your kubernetes cluster, you may be wondering: how do we check if inter-node network traffic is really working?
Of course, we can start digging logs of your CNI pods, or check system routing table (in the case of Calico). Still, they are somewhat troublesome.
Recently, when trying out Cilium in our k8s deployment, I found that Cilium developers provide an easy and hassle-free approach to this question: deploy two sets of ping-pong pods and let them try to communicate with each others.
echo
1 | apiVersion: v1 |
probe
1 | apiVersion: apps/v1 |
The above two yamls are a little bit different from that on the Cilium website in that the probe pods now have 20 second initial delay in case the probe pods send requests to echo pods before echo pods are ready.