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읽은 책How the world really works - Vaclav Smil최재천의 공부 - 최재천, 안희경읽고 있는 책통합과학 완전정복 - 신인철생물학의 쓸모 - 김응빈사피엔스 - 유발 하라리읽을 책혼자 공부하는 네트워크 - 강민철타입으로 견고하게 다형성으로 유연하게 - 홍재민CUDA 기반 GPU 병렬 처리 프로그래밍 - 김덕수추천 시스템 입문 - 가자마 마사히로, 이즈카 고지로, 마쓰무라 유야노트책 읽기에 흥미를 더하자. 조금씩 조금씩..!

작년 인턴 생활을 할 때 기존에 가지고 있던 6 Plus로는 회사 앱 설치가 불가능해 급하게 아이폰 12를 refurbished로 아마존에서 구매했었다. 처음에 왔을 때부터 최대 배터리 성능이 80%였던터라 한 1년 가까이 쓰니까 전압이 일정하지 않아서 그런지 툭하면 꺼지곤 해서 스트레스가 이만저만이 아니었다. 이러한 이유로 한국에 온 김에 배터리 교체를 감행했다. 전에 이미 한번 바꿔본 기억이 있어서 그렇게 어렵진 않았다. 하지만 문제는 패널을 제거하면서 발생했는데, 아시는 분은 아시다시피 아이폰은 앞에서 패널을 먼저 제거해야 내부 부품에 접근할 수 있다. 근데 제거하다가 패널을 깨먹었다. 패널과 패널에 붙어 있는 프레임 사이에 헤라를 넣어서 모서리에 가니 사실상 유리를 직접적으로 건들여서 부셨기 때문..

What is a preferred Share?Risk: Bond Like a Bond: Preferred shares pay dividends instead of couponsLike a Common Stock: A preferred share is a proportional piece of equity in a businessWhat are considerations when buying a preferred share?Read the certificate of designationCumulative Preferred: You'll eventually get your dividend but you might not have the ability to compound a consistent divide..

4th Rule: A stock must be undervaluedHow do we calculate the intrinsic value of a stockIntrinsic value can be defined simply: It is the discounted value of the cash that can be taken out of a business during its remaining life.How do we use the BuffettsBooks.com intrinsic value calculator

3rd Rule: A stock must be stable and understandableWhy is stability important for determining the intrinsic valueBusinesses manage their finances just like individual people! We must find a company that is less risky to predict.Why it's important to invest in a company that you understand

2nd Rule: A stock must have long term prospectsHow do we identify a company with long term prospects?Predicting which company's will be around in 30 years is impossible, but one's that won't be around are easy to predict.Why do we want to invest in a long term company?Sustained EarningsTaxesWhat is Capital Gains Tax?What is the difference between short term gains and long term gains?

1st Rule: A stock must be managed by vigilant leadersDefine Vigilant LeadershipCarefully observant or attentive; on the lookout for possible danger. And the possible danger is the debt.Understand the Debt to Equity RatioWB likes Debt/Equity Understand the Current RatioHow will the company handle debt in the next 12 months?It compares the current assets to the current liabilities.WB likes the cur..

How does the price of a bond change with interest ratesHow to use the BuffettBooks.com Bond Calculator

What is a yield curve?x-axis: Terms (years)y-axis: Yield (%)Generic positive yield curve (natural)Generic flat yield curveGeneric inverse yield curve (very rare)How can I use a yield curve to predict market behavior?Yield curves are a valuable tool that help investors understand how the federal government is trying to steer the economy.Flat and inverse yield curves mean that the FED wants to slo..

What is a credit ratingMoody's, Fitch, S&PEvaluate the ability of municipal or a company to pay backWhat does a rating tell me about riskLooking at the statistics, the risks of not paid back from BBB muni. and AAA company are the sameThink in statistics, yourself.Don't get swung by others