PSA: Outside of stat arb and heavily leveraged market making with teams of PhDs, 60% annualized CAGR doesn't exist. In the real world, anything above 10% over the long-term (in-sample over 50 years), is extremely likely to be spurious and won't repeat.
None of the retail brokers (including ibkr) do this correctly, although ibkr is probably the best for retail. Their cross-margining for futures options doesn't work (since the options are treated as "securities" and the futures are treated as "commodities", they treat them as segregated accounts).
They do handle multi-legged options trading, and implement SPAN correctly within the futures space. Portfolio Margining is not always correct (they don't implement customer portfolio margin baskets right), and be aware that margin can *and does* change drastically, particularly during financial crisis.
Not necessarily true; if you got a mark on copper futures in Europe then you would expect the best American copper futures bid/ask to change fast. Updating bid/ask doesn't require trading.
I said "I believe the science is still out on this" because I personally haven't found anything conclusive myself. Until I find evidence one way or the other I'm not inclined to take a strong opinion on it. So far the best argument for sit-stand desks seems to be "sitting is 'going to kill you faster than smoking' so standing must be better". Correlation != causation... I'm much more inclined to believe this is just a spurious correlation...
Like everything in life, moderation is the key. If you are getting up and down from your desk regularly anyway then the health benefits wouldn't be very large. Standing all day isn't particularly good for you either.
I believe the science is still out on this. My main issue with the current studies is that the occupations are different. For instance, what is the difference in stress between a GP and an accountant? As far as I'm aware, there haven't been any studies that compare mortality that control for the 'same occupation'. The studies thus-far have only shown that people who have occupations that require standing tend to have lower all-cause mortality than those whose occupations usually involve sitting. If there is such a study then I’m interested in reading it.
Unless these investors are highly leveraged, have insider information, or are simply 'lucky' (or a combination of all three) I would assume survivor bias... The best proprietary firms in the world don't make 50% per year...
I think the version in f-droid is 13.1.2. If you enable the guardian repository in f-droid that should have the 14.0.9 client which is considerably nicer. You can disable all otr if you want, or set it so you need to explicitly enable it when you are chatting with someone. The latest version has adopted the Android L theme as well so it is very well integrated. (I did have the same issue as you with the version in the f-droid repository).
I personally don't use iOS so I'm not sure whether that is still an issue. They released an update for the iOS client fairly recently so you could give that a shot? The new iOS client seems like it is very nice: https://chatsecure.org.
It uses Otr for encrypted chat, so you can use any otr client for the other side of the chat. I personally use pidgin on my laptop and ChatSecure on my cell. It currently supports at least iOS and Android, which encompasses most people that I know.
https://www.lenovo.com/us/en/p/laptops/thinkpad/thinkpadp/le...