Based off the balance sheet FTX may have peaked (September 2021) with more than $100 billion of paper gains in "less liquid" assets.
Token Last wks Last wks Estimated Peak Peak Peak
value price holding price date value
FTT $5.9bn $24.00 246m $77.69 09-Sep-2021 $19bn
SRM $5.4bn $0.75 7,240m $12.50 13-Sep-2021 $90bn
SOL $2.2bn $32.00 70m $258.78 07-Nov-2021 $18bn
Just speculation, but once you've "made" $130bn you feel like a genius. You might want to start acting like a hundred billionare. Time to start throwing money around. Especially spending it on anything that helps you realise those gains.
But FTT/SOL/SRM is not very liquid. So you use your liquid assets (i.e. your customers' USD, USDT, BTC and ETH). People might wonder where you get all this cash. You don't want to admit you are using customer funds and you only have gains on tokens you printed. So pretend you're genius trader and run a highly profitable exchange.
You might be referring to David Mackay's excellent 2008 book Sustainable Energy – Without the Hot Air - https://www.withouthotair.com
In the book he tries to determine if renewables could support UK's energy needs. He estimated the UK consumes about 195 kWh per day per person (food, transporation, heating, miltary defense, ...)
If the UK massively invested in all the renewable options it stacked up to 180 kWh per day per person (obviously he provided lots of caveats).
His assumption on Solar PV was covering 5% of the UK land with 10% efficient PVs (about 200m2 per person). He estimated that could contribute 50kWh/d/p.
In the 14 years since the book was published it seems like Solar PV efficiency is now commonly 17-19%. So might only need to use 2.5% of the land.
I also have not seen many vacancies advertised at that level. But I suspect there are roles for people with the right experience. The roles are getting filled by recruiters approaching already employed people.
My guess is a very experienced developer that speak English and Japanese can get base salaries above ¥10m at FAANG in Tokyo. So probably ¥15m with bonus and RSUs is obtainable.
"So why not make HS2 more like HS1, by allowing it to perform shorter journeys for frequent travellers"
Because the whole point of HS2 is to increase capacity by taking the high-speed long-distance trains off of the existing lines, where they get in the way of running local stopping services (because everyone has to get out of the way of the high speed trains).
I think the only email services that are not going to mine your emails for valuable data are paid services that have made strong commitments to privacy. This was an interesting podcast interview with founder of Fastmail https://overcast.fm/+Hbyc810T0
I was about to counter that self hosted is an option, but that doesn't technically qualify as an "email service".
I'll note that the privacy centric services are only good as long as they're still maintained by a founder... you trust. If things go sideways, they can always be "acquired".
To summarise points that are missed in the comments and maybe not well describe on the website:
This is based in Canada. The vast majority is heavy oil in unconsolidated sand. This cannot be pumped, so there are commonly no pipelines.
During the process of extraction a lot of low value methane escapes from the oil. Canada has limits to the amount of venting a well can do, so if they reaches the limit they have to either slow the well's production or spend money on building a flare.
Both options have an economic cost. These mining units are addressing this.
Thanks, I didn't know that. I've changed to the standard "Expanded Control Strip" and it is much better. I found the constantly updating touchbar visually distracting.
In the context of Rails applications hosted on EC2, then I've not found Ruby's memory usage to really be an issue. In my experience most Rails apps range between 150-500MB per instance.
My current employer typically uses M5 instances which have a ratio of 1 vCPU : 4 GiB Ram.
Running Unicorn you'll probably only want 1.5 instances per vCPU. Even a memory heavy Rails app is probably only going to utilise ~20% of the available memory.
Running threaded Puma, you probably want only a single process per vCPU and maybe 5-6 threads. In my apps running 5 threads per process typically increases memory of the process by 20%. So in that instance you'd only utilise 15% of the available memory on a M5 instance.
If you are having memory issues on Rails, then quick wins are upgrading your Ruby version. I saw 5-10% drop in memory usage with each of the major version 2.3.x -> 2.4.x -> 2.5.x.
Also if it is an old app, check you've not built up cruft in your Gemfile. Removing unused gems can be another quick win for reducing memory usage.
But FTT/SOL/SRM is not very liquid. So you use your liquid assets (i.e. your customers' USD, USDT, BTC and ETH). People might wonder where you get all this cash. You don't want to admit you are using customer funds and you only have gains on tokens you printed. So pretend you're genius trader and run a highly profitable exchange.