It was very fun to hear Ron tell the stories of early Jane Street.
Their first cluster was a pile of 6 Dell boxes in their office.
And it was important to them that it be physically in their office so that if something went haywire, they could just physically unplug the machine.
Goes without saying that they can no longer fit their 100s of k of GPUs in their office.
3.)
The exchange rate is not calculated by current google rate , they have follow this rate for all trade with getting profit from both side of buying and selling stock .
Hey @Wealthsimple, can someone explain this math? I made a $200 USD profit on $INTC, but your "exchange rates" turned it into a $393 CAD loss. π
#Wealthsimple#Investing#StockMarketwin
Read full thread π
2.)
My $200 stock profit was instantly swallowed by a
5-cent artificial currency spread. It feels incredibly deceptive to advertise commission-free wealth building while wiping out retail traders with hidden FX spreads.
Reiner Pope reverse-engineered the entire frontier AI infrastructure stack from publicly available API prices.
Full 2-hour blackboard lecture with @dwarkesh_sp is one of the most info-dense interviews I've ever seen.
Watch it if you want to actually understand AI works.
7/ Anthropic's cache pricing tiers reveal the memory hierarchy.
Cache for 5 min vs 1 hour β different prices.
Working from drain time (capacity Γ· bandwidth): β’ 5 min β flash storage β’ 1 hour β SPINNING DISK
Reiner: "I'm shocked to see spinning disk being used at all."