therealchiggs
Joined 6 years ago
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Comment · 3 years ago
Comment · 3 years ago
How can we know?
This is part of the challenge with these regulations - by definition we're defining a framework based on existential knowledge.
What about batteries that can also be panes of glass that act as the display? What about ultra low-power devices that are powered kinetically by typical human movement or magnetic perturbations?
None of these currently exist in a commercially viable form, but if we regulate based on our current view of technology do we run the risk of making these innovations more challenging to bring to market? That's the challenging balance that needs to be considered.
Comment · 4 years ago
I'm curious if you have a theory or explanation as to why some pings appear to be asymmetric. For example for the following cities, it seems West->East is often faster than East->West:
Chicago London New York
Chicago — 105.73ms 21.273ms
London 108.227ms — 72.925ms
New York 21.598ms 73.282ms —Comment · 4 years ago
There's an interesting roadmap in the "cherry" folder of the git repo[0]. It begins by bringing up a design on FPGA and ends with selling the company for $1B+ by building accelerator cards to compete with NVIDIA:
Cherry Three (5nm tapeout)
=====
* Support DMA over PCI-E 4.0. 32 GB/s
* 16 cores
* 8M elements in on board RAM of each core (288 MB SRAM on chip)
* Shared ~16GB GDDR6 between cores. Something like 512 GB/s
* 16x 32x32x32 matmul = 32768 mults
* 1 PFLOP @ 1 ghz (finally, a petaflop chip)
* Target 300W, power savings from process shrink
* This card should be on par with a DGX A100 and sell for $2000
* At this point, we have won.
* The core Verilog is open source, all the ASIC speed tricks are not.
* Cherry will dominate the market for years to come, and will be in every cloud.
* Sell the company for $1B+ to anyone but NVIDIA
Comment · 4 years ago
Citadel are moving their HQ from Chicago to Miami, explicitly stating violent crime as one of the reasons[1].
One thing that’s affecting peoples perception of safety is an increase in violent crime in previously safe neighbourhoods such as River North. Folks who felt safe because they could avoid the more violent areas of town are reading about (and witnessing) shootings and car-jackings occurring near where they work and go out to eat at restaurants. That changes calculations away from feeling some semblance of control over the situation towards feeling like violence might randomly happen to me or my family, which increases fear disproportionately compared to the raw statistics.
[1] https://www.nbcchicago.com/news/local/billionaire-hedge-fund...
Comment · 4 years ago
Scapy is great if you want to send and receive packets onto a network from Python. There are a few gotchas, for example it can be eager to send real packets out in order to resolve names which might not always be what you want if you're doing offline analysis.
If you are parsing packet captures or defining custom protocols then dpkt[0] is also worth a look. It's a simpler module with substantially higher performance.
A 5-star car from 2015 is likely to be significantly less safe than a 5-star car from 2023.
[1] https://en.wikipedia.org/wiki/Euro_NCAP#Rating_history