k0stas

The overhead of translating x86 instructions to RISC-like microcode is known and is something like 1-2%. This is not the reason for the difference between Intel and Apple.

The same theory of flight that birds use to fly, i.e., none. Some birds might notice they use less energy if they don't flap their wings and instead catch an updraft. I don't think they need a theory of pressure gradients to exploit this phenomenon. They just have to feel it in their bones.

I know my response is glib, but no "theory of" is needed to do useful work. Humans can build intuitive understanding through personal experience, observation, and thinking. And they can pass some forms of this understanding via apprenticeship, laws, rules, organizational structures and cultural norms among other things.

For me, not supporting uBlock Origin trumps every single advantage Safari may have.

> LG for instance, that make 2 lbs 13.3 inch notebooks and 3 lbs 16 inch notebooks

Those are the Gram series, right? They use a magnesium alloy chassis that feels like flimsy plastic. They are light, but they feel like a something that's going to imminently break compared to Apple's aluminum unibody.

In my view, the Gram trades off too much stiffness and chassis robustness for weight to be palatable to a non-niche audience.

I thought I was in the niche of users that prized weight over all else but I had concerns that a light on-the-go laptop that was so flimsy would last. I returned my Gram due to the fact that I just couldn't get used to Windows (after using Linux and Mac for >10 years) so the build robustness and weight ended up being a moot point

> No 32GB options on any of the models announced today is a shame. Or not I guess as it means I won't be buying anything today

I think this was the fastest way to get something out quickly and cover as many SKUs as possible.

We'll need to wait for the next/larger SKU models to get out of the 16B / 2TB / 2-port limitations. Maybe they should call those devices the Macbook Pro Max.

I wonder how many more SKUs will be needed. Obviously they are going to minimize them, but will they be able to cover Macbook Pro 16", iMac, iMac Pro and Mac Pro with only one (unlikely) or two (likely) more SKUs?

It seems to be due to the fact they are integrating the DRAM into the package. There is only room for two 8GB DIMMs:

https://www.apple.com/v/mac/m1/a/images/overview/chip__fffqz...

> My goal was to find backup software, not to do a security analysis

Did you achieve your goal (i.e., did you find backup software you trust)?

Intel does not seem to have capitalized on the Altera acquisition but maybe that is also related to Intel's fab issues.

From an operation perspective, this combines two non-overlapping TSMC customers that can potentially negotiate better wafer prices together. I assume that AMD has significantly higher wafer counts than Xilinx so this would primarily benefit the Xilinx business.

From a technology perspective, this acquisition may succeed where the Intel/Altera acquisition fizzled due to AMD's chiplet approach. Swapping a processor core for an FPGA chiplet might be an "easy" win in some markets.

It's a YC startup from the first ever batch and HN was created to try to recapture what Reddit was like at the beginning.

The largest FPGAs were reticle-busters when I used to work on them. Today I think the largest FPGAs use chiplet-style integration. Even with the inefficiency of an FPGA, many smaller chip designs can still fit on the largest FPGA.

Also, there are prototyping boards specifically built for emulation that integrate multiple FPGAs, although this does introduces a partitioning problem that has to be solved either manually or via dedicated emulator software.

I use Brightness Sync (https://github.com/OCJvanDijk/Brightness-Sync) for my external LG 5K screen attached to my iMac.

The iMac light sensor controls the brightness of both monitors automatically. You can even insert a fixed offset to match the absolute brightness of both monitors.

The title should be updated to "Microsoft Edge copies user data from Firefox without asking".

The current title is ambiguous: "Windows duplicates data from Firefox without asking". The fact that this is user data is an important distinction. Also, the word duplicates has a sense of having a purpose of redundancy, which is not the case here.

You and the parent poster are probably thinking of heterojunction SiGe bipolar transistors.

SiGe bipolar transistors are fabricated on top of old CMOS processes and are relatively cheap from a fixed-cost perspective but not highly integrated and only cost/power-efficient for niche PHY layer applications.

I always ordered mine from Walnut Creek!

Ethernet transmission is broadband not tuned like a radio but the same equations as presented in the article hold across most of the bandwidth (where the skin effect holds). Actually, I am not sure whether the article is referring to tuned or broadband communication but in a sense it is irrelevant because practically, a large proportion of the energy transmitted in a modern broadband system is in the skin effect domain. If this wasn't the case, the system would be highly inefficient in the use of available bandwidth.

Required reading about discount brokerage revenue streams from patio11: https://www.kalzumeus.com/2019/6/26/how-brokerages-make-mone....

> output impedance is lower, so it's harder to drive heavier headphones

That is backwards. Lower output impedance is better as more power is delivered to the load all other things being equal.

> Saving over $300k is sizable, but selling $10M in stock seems pretty risky. Wouldn't this be a huge red flag, especially for someone who works at the company? Seems to be lots of risk and not that much (comparatively) saved.

He couldn't have known the size of the loss in advance. He probably expected the loss to be larger.

For those interested in understanding the general operation, this type of circuit is called a relaxation oscillator.