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I appreciate you putting up the first chapter!


No worries. I saw some people doing that and putting email walls to get it. I think this is much better. Just click, download it, and get a sense of it before making a purchase decision.


The lack of email walls was so refreshing. I expected an ugly form to show up, and was willing to fill it out. But instead, I was greeted with the actual download - just like that.

I don't know what the opposite of Cognitive Dissonance is called, but now I know what it feels like.


That's so nice to hear!


You sound like a shill.


From the comment guidelines: https://news.ycombinator.com/newsguidelines.html

> Please don't post insinuations about astroturfing, shilling, brigading, foreign agents and the like. It degrades discussion and is usually mistaken.


"Win up to $10 million by saving in an FDIC insured account."

I see that . Sounds scammy and gimmicky. Close page.


We have had this issue for sure, and it's a great point. Any suggestions to help us make it sound less scammy but that also communicates something similar?


"You can evaluate expressions by writing them after "

What true beginner programmer is even going to know what this means?


Isnt this the kind of thing that starts wars.


"African American males made up the majority of protesters "

This is very clear. No idea what you are talking about.


Ethnicity Distribution:

A substantial majority of the protesters were white, in the cities where the data was gathered, with the highest percentage in Minneapolis (85%), followed by Los Angeles (78%), and Atlanta and New York (both at 76%). A total of 18% of the protesters were African American in Atlanta, 11% in Minneapolis, 13% in New York and 3% in Los Angeles. Those numbers remained steady during the nighttime hours. Hispanic and Asian American participation was less than 10% in all four cities.

https://www.mobilewalla.com/about/press/new-report-reveals-d...


Marc1 says>"Ethnicity Distribution: A substantial majority of the protesters were white, in the cities where the data was gathered, with the highest percentage in Minneapolis (85%), followed by Los Angeles (78%), and Atlanta and New York (both at 76%). A total of 18% of the protesters were African American in Atlanta, 11% in Minneapolis, 13% in New York and 3% in Los Angeles. Those numbers remained steady during the nighttime hours. Hispanic and Asian American participation was less than 10% in all four cities.

https://www.mobilewalla.com/about/press/new-report-reveals-d...

Again, nothing you say here can be found at the URL you provided. In fact the words "male", "female" and even "%" do not exist at that URL.


They moved/removed the doc. Here's the link of the cached copy [ https://webcache.googleusercontent.com/search?q=cache:pX1Cst...] and text:

>"Ethnicity Distribution: A substantial majority of the protesters were white, in the cities where the data was gathered, with the highest percentage in Minneapolis (85%), followed by Los Angeles (78%), and Atlanta and New York (both at 76%). A total of 18% of the protesters were African American in Atlanta, 11% in Minneapolis, 13% in New York and 3% in Los Angeles. Those numbers remained steady during the nighttime hours. Hispanic and Asian American participation was less than 10% in all four cities.

Male vs. Female During the daytime hours, the majority of Black Lives Matter protesters were male in Atlanta (58%), Minneapolis (56%) and New York (62%). However, in Los Angeles, the greatest number of protesters during daytime were women. At nighttime, the percentage of male protesters increased in all four cities.

African American Males vs. Females African American males made up the majority of protesters in the four observed cities vs. females. Men vs. women in Atlanta (61% vs. 39%), in Los Angeles (65% vs. 35%), in Minneapolis (54% vs. 46%) and in New York (59% vs. 41%). There was no statistical change for the nighttime hours.

How Old Were the Protesters? The overall age of the protesters in all four cities skewed heavily in the 18-34 age ranging from 66% in New York and L.A., 67% in Minneapolis to 69% in Atlanta. Protesters in the 55+ age group ranked second ranging from 24% in New York, 23% in Atlanta and Minneapolis to 20% in Los Angeles."


Then either their pie charts are wrong/mislabeled or their prose writing sucks. Compare the two.


The full sentence you're quoting makes things a bit murkier to me: "African American males made up the majority of protesters in the four observed cities vs. females,"


possibly more clear to say something like: "for African American protesters the majority, xx%, were males." If that's what they're trying to say.


That's not how language works. You can't freely remove words from a sentence and assets that the meaning remains the same.


I pine for an m105 again


Well dont leave us hanging! who is it?


Club D’Elf. They are a cross between morrocan trance and jam band. Though there is a core group of musicians, the only constant is the band leader/bass player. Depending upon who’s playing that night the style could be anything from Pink Floyd-esque, gnawa music, MMW-esque, David Bowie-esque.

They have a dedicated taper following and their own sound man for nearly every show resulting in at least 1 high quality recording for nearly every show they’ve played in the last 20 years. And the vast majority of their shows are at a small venue in Cambridge Ma.

I strongly recommend them.

But there’s lots of other good stuff on the live music archive.


There is no simple answer to this.


That is unusual. I have never had a laptop that would not work without a battery present.


It’s really not, especially for high end models if you are stressing your hardware and it’s not an awfully thermally limited design you’ll drain the battery even when you are connected to the charger.

You have 60W chargers usually for systems with max power draw of the CPU+GPU that can reach around 200W peak and in the mid to high 1XXW sustained if you have a DTR/high-performance “mobile” CPU + dGPU.

Even if your laptop comes with a 90W charger it’s still a problem because it’s not enough to power a 65W series H CPU and a high end GPU that draws another 80-120W.

Most laptops will always use the battery directly and trickle charge it due to the power draw.

Power(hungry)ful modern gaming/DTR style laptops can use both concurrently, heck older gaming laptops used to come with multiple power supplies that were needed simply because even the battery wasn’t enough at the time to serve as a buffer, so you had to plug in 2 power adapters to power the laptop fully.

Even without this constraint having a single power path is cheaper and simpler to design so most manufacturers just only draw from the battery and have a separate charging circuit that charges it without having to add power balancing and switching circuitry.

IBM thinkpads used to advertise that you can switch the battery while the laptop was plugged into the charger most laptops of that period didn’t support this either.

If you go even further it was even more of a headache because older laptops used LiPo batteries which were even more finicky.


> older gaming laptops used to come with multiple power supplies

Some curious digging found two examples (with pictures):

https://www.gamersnexus.net/news-pc/2612-why-2-power-adapter...

https://hothardware.com/reviews/dell-alienware-area-51m-revi...


I have a couple of old ThinkPads that work but seem to throttle heavily, I've attributed it to need for better burst draw handling.

Also one of their older W models that will only run on battery if a standard 90W power supply is connected and will only charge the battery if the device is off. Running on external power is only supported with the 135W or (stock) 170W PSU.


MBPs at some point switched to drawing power faster than it could be provided by the plug alone. Of course, you can't tell nowadays whether laptops will work without a battery, because most batteries are non-removeable.


I don't think I've ever seen that behavior with a MacBook Pro of any vintage -- and I've had an MBP of one stripe or another since at least 2007, using the date of the 2007 MacBook Pro gathering dust bunnies nearby -- except when I use the wrong power supply with it, e.g., a 13" MBP power supply with a 15" one, or my MacBook Air's power supply with any MBP now.

I wouldn't doubt it's possible to draw more power than the adapter can give you if you're pushing the MBP full-bore, but I'm pretty sure that under normal power loads, this doesn't happen.


Try mining cryptocurrency, running prime95, playing fps shooters, or even dota on high settings. You will notice the battery draining while plugged in. You also see it if you are on an airplane, but that is usually because the charger tries to pull too much and overheats and gives up ghost. Macbooks have underpowered chargers.


> Macbooks have underpowered chargers.

My 16” shipped with a 96 watt charger, and I’ve not seen a laptop with a higher powered one. I’d have to contend with that assertion.


I had 180W for my old HP laptop, and recently ~135W (or 170W) for Thinkpad W541.

<100W adapters were mostly for potato laptops, until USB-C came into picture which supported up to 100W and now manfucaturers adapted (and probably wait for 200W PD).


Newer Dells pull 180W from a paired USB-C dock connector.


Nice to see workarounds.

I must say that I love that I just plug out the laptop power adapter and plug it into my phone (or mouse) and it charges. Even when it comes with lower performance of the laptop.


Are all other laptops you've seen potato? My Dell XPS 15", 130 watts.


My current Dell laptop uses a 240 watt charger


ThinkPad P73 has 230 Watt charger.


I suspect that this is the reason why MBPs now refuse to boot on low battery. You used to be able to start up the machine when your battery was at 0% (as long as you were plugged in), but newer MBPs complain and don't boot up until you recharge to 10% or so.


They just bumped the power adapter on the 2019 MBP up a little bit. I've seen people say that if they max all cores and leave it that way it will drain the battery even if it's plugged in. I haven't attempted that, and I've never seen the behavior under any other circumstance.


I've run into it a few times with mine (2017 15" MVP, 3.1GHz Quad i7, 16GB RAM, Radeon Pro 560). I had an issue the other day where a virtual machine got stuck in a loop while testing some background jobs. Each time I tested it, another infinite job booted up. Eventually, I had like 30 of them running when I took off my headphones and heard the fans. Checked my battery and I was down to 65% despite being plugged in. I'm guessing that happened over the course of an hour or so.

I've also had it happen a few times when running unit tests for a different project in Docker, but that's likely just because Docker for Mac makes Electron look resource efficient.


It does, just launch any game that uses 3D (tried Starcraft 2 and WoW) - you will see that battery will drain when you have power adapter plugged in - MacBook Pro from (AFAIR) 2018.


That's unusual for modern machines. It was de rigeur from the first portables up to about 2005, as I recall.

I was rudely surprised by my first Core 2-era machine that wouldn't boot without a battery installed, because prior to that, from Pentium-based Toughbooks back to the 486-based Noteflex back to various 8088 and even pre-x86 machines (PC8201A, club100 represent!), they were all absolutely fine running from the power inlet alone with no battery.

The Zenith MiniSport was the sole exception because the power jack was actually physically on the battery, but you could still gut an old dead battery and make a dummy, and it would run from the brick just fine. (This is documented in the very first issue of Brian Mork's excellent Minisport Laptop Hacker zine, available wherever fine textfiles are sold.)


Lenovos etc. don't care, but I've seen this first hand with some Acer and Asus laptops. It has nothing to do w/peak power consumption, that is a wholly different problem, of a different class of devices.


some Lenovo devices do throttle though. If you do not have a battery and are using the 65W not 90W lenovo chargers on an X220, it will throttle your power.


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