ABCD
xkcd Phone 12

New phone OS features: Infinite customization (home screen icons no longer snap to grid), dark mode (disables screen), screaming mode (self-explanatory), and coherent ultracapacitor-pumped emission (please let us know what this setting does; we've been afraid to try it).
Curbside

The state has had so many contact tracers disappear into that shop that they've had to start a contact tracer tracing program.
Worst Ladder
![[Six months later] "Well, our 'worst ladder' subscription series was a surprisingly lucrative success, but was completely canceled out by the losses from the disastrous Home Depot merchandising tie-in."](https://imgs.xkcd.com/comics/worst_ladder.png)
[Six months later] "Well, our 'worst ladder' subscription series was a surprisingly lucrative success, but was completely canceled out by the losses from the disastrous Home Depot merchandising tie-in."
10,000 Hours

I'm proud to announce that as of this year I've become a world-class expert at chewing.
Chemist Eggs

Chemists actually find it simpler to define a general odor of rotten eggs as a baseline, and the LACK of rotten eggs as a distinct smell.
Dialect Quiz

Do you make a distinction between shallots, scallops, and scallions? If you use all three words, do they all have different meanings, all the same, or are two the same and one different?
Election Screen Time

Feels like I picked a bad year to try to start having a healthy relationship with political news.
Prediction

You'd think it'd be easy to just bet money against these people, but you have to consider the probability of them paying up.
All-in-One

Changes with this update: If you use the combined scan-shred function, it now performs them in that order instead of the reverse, saving a HUGE amount of CPU time.
Bigger Problem

Your point that the world contains multiple problems is a real slam-dunk argument against fixing any of them.
Masks

Haunted Halloween masks from a mysterious costume shop that turn you evil and grow into your skin score a surprisingly high 80% filtration efficiency in R. L. Stine-sponsored NIOSH tests.
Amelia's Farm Fresh Cookies

I told her I'd take her address off the packaging if she'd stop submitting anonymous food safety complaints about my bakery to the health department, but she sent me a note that said NO DEAL along with an extra large batch of cookies.
Messaging Systems

SMS is just the worst, but I'm having trouble convincing people to adopt my preferred system, TLS IRC with a local server and a patched DOSBox gateway running in my mobile browser.
Parity Conservation

Bloody Mary is made of antimatter. It explains so much.
Message Boards
![(c) You can have a scooter when you pay for it yourself, and (d) if you can't learn to start a new thread rather than responding to an old one, you'll be banned. [thread locked by moderator]](https://imgs.xkcd.com/comics/message_boards.png)
(c) You can have a scooter when you pay for it yourself, and (d) if you can't learn to start a new thread rather than responding to an old one, you'll be banned. [thread locked by moderator]
Volcano Dinosaur

Phylogeneticists are working on identifying and notifying its next of kin.
Voting

'Wait, our state has mail voting. The forms are literally on the kitchen table.' 'Not now, I'm busy researching which channels have sharks in them.'
Common Star Types
![This article is about Eta Carinae, a luminous blue hypergiant with anomalous Fe[ii] emission spectra. For the 1998 Brad Bird film, see The Iron Giant (film).](https://imgs.xkcd.com/comics/common_star_types.png)
This article is about Eta Carinae, a luminous blue hypergiant with anomalous Fe[ii] emission spectra. For the 1998 Brad Bird film, see The Iron Giant (film).
Evidence of Alien Life

Both too cautious AND not cautious enough: "I'm skeptical that those are aliens, so I'm going to try pulling off their masks."
Gravitational Wave Pulsars

The most important attributes of a vector in 3-space are {Location, Location, Location}
Polls vs the Street

Other pollsters complain about declining response rates, but our poll showed that 96% of respondents would be 'somewhat likely' or 'very likely' to agree to answer a series of questions for a survey.
Constellation Monstrosity

It's rare to get both astronomers and astrologers equally mad at you, but apparently I've messed up both a bunch of star location databases AND the will of the fates.
University COVID Model

I admit this is an exaggeration, since I can think of at least three parties I attended while doing my degree, and I'm probably forgetting several more.
Stellar Evolution

It may remain in equilibrium for some time, slowly growing, and then suddenly become significantly redder.
Hurricane Hunters

Our flight gathered valuable data on whether a commercial airliner in the eye of a hurricane can do a loop.
Synonym Date

We need some grub to munch--I'll go slouch over to the kitchen.
Standard Model Changes

Bugs are spin 1/2 particles, unless it's particularly windy.
Deer Turrets

When my great grandfather designed the Titanic and it hit an iceberg and sank, he didn't sit around moping. He took those lessons to his next job designing airships, and he made the Hindenburg completely iceberg-proof!
Rabbit Introduction

Washington state is seeing great success with reintroducing the Columbia River Basin subpopulation. We cannot allow them to further widen the interstate bun gap.
Boat Puzzle

'No, my cabbage moths have already started laying eggs in them! Send the trolley into the river!' 'No, the sailing wolf will steal the boat to rescue them!'
Dependency

Someday ImageMagick will finally break for good and we'll have a long period of scrambling as we try to reassemble civilization from the rubble.
COVID Risk Comfort Zone

I'm like a vampire, except I'm not crossing that threshold even if you invite me.
Wish on a Shooting Star

Congratulations to whoever wished for revenge on a forest near the Tunguska River, a 1980 Chevy Malibu in Peekskill NY, Alabama resident Ann Hodges, every building in Chelyabinsk with glass windows, and the non-avian dinosaurs.
26-Second Pulse

There are some papers arguing that there's a volcanic component, but I personally think they're just feeling guilty and trying to cover the trail.
Mathematical Symbol Fight

Oh no, a musician just burst in through the door confidently twirling a treble clef.
Exposure Notification

I don't see why everyone is so hungry for BAD news, but fine, I'll give in to feedback and add a dark mode.
Scientist Tech Help

I vaguely and irrationally resent how useful WebPlotDigitizer is.
Cosmologist Genres

Inflationary cosmologists call all music from after the first 10^-30 seconds "post-"
Pods vs Bubbles

Canada's travel restrictions on the US are 99% about keeping out COVID and 1% about keeping out people who say 'pod.'
Faraday Tour

I asked them if it was safe to be running tours during the pandemic. They said, "During the what?"
Asterisk Corrections

I like trying to make it as hard as possible. "I'd love to meet up, maybe in a few days? Next week is looking pretty empty. *witchcraft"
Campfire Habitable Zone

Oh no, my marshmallow became tidally locked!
Photo Deposit

It's okay, they scan the serial numbers and make sure you can't deposit the same bill more than once.
Slide Trombone

Remember the CPS 2000, the super soaker that was discontinued because it was too powerful? Relatedly, can I borrow your tuba?
COVID Risk Chart

First prize is a free ticket to the kissing booth.
Cursed Chair

The Wirecutter staff called the Herman Miller Siege Perilous "the most cursed product we've ever had to fight" and "nearly as immortal as it boasts."
Hamster Ball 2

The worst is being teased by responsible, mask-wearing teens. They even spritz the hamster ball with disinfectant before rolling it, carefully avoiding the filter vents.
Acceptable Risk

Good thing I'm not already prone to overthinking everyday decisions!
Universal Rating Scale

There are plenty of finer gradations. I got 'critically endangered/extinct in the wild' on my exam, although the curve bumped it all the way up to 'venti.'
Space Basketball

My shooting will improve over the short term, but over the long term the universe will take more shots.
Oily House Index

We're underwater on our mortgage thanks to the low price of water.
Five Word Jargon

My other (much harder) hobby is trying to engineer situations where I have an excuse to use more than one of them in short succession.
Endorheic Basin

My biggest fear is that colonial engineers will try to flood me to generate electricity. My biggest hope is that I'll develop sailing stones.
Old Days 2

The git vehicle fleet eventually pivoted to selling ice cream, but some holdovers remain. If you flag down an ice cream truck and hand the driver a floppy disk, a few hours later you'll get an invite to a git repo.
Modeling Study

You've got questions, we've got assumptions.
ISO Paper Size Golden Spiral

The ISO 216 standard ratio is cos(45°), but American letter paper is 8.5x11 because it uses radians, and 8.5/11 = pi/4.
Low-Background Metal

The only effect on the history books were a few confusing accounts of something called 'Greek fire.'
Millennium Problems

The hard part about opening a hole in the proof of the Poincaré conjecture is that Grigori Perelman will come out of retirement to try to fix it by drawing a loop around the hole and contracting it to a point.
Large Number Formats

10^13.4024: A person who has come back to numbers after a journey deep into some random theoretical field
Dynamic Entropy

Despite years of effort by my physics professors to normalize it, deep down I remain convinced that 'dynamical' is not really a word.
Pinouts

The other side of USB-C is rotationally symmetric except that the 3rd pin from the top is designated FIREWIRE TRIBUTE PIN.
Hair Growth Rate

Hourly haircuts would be annoying, but they'd be easier to do yourself, since you'd have adjacent hairs as a guide. Growing it out would be a huge pain, though.
Eventual Consistency

Later I'm going to get a head start on the heat bath.
Carcinization

Nature abhors a vacuum and also anything that's not a crab.
Wrong Times Table

Deep in some corner of my heart, I suspect that real times tables are wrong about 6x7=42 and 8x7=56.
MBMBaM

Hello and welcome to Millibar Millibarn Attometer, an advice show for the Planck era.
Confidence Interval

The worst part is that's the millisigma interval.
Great Attractor

Living in the southern hemisphere was nice because I could jump extra high, but I like it here too. Besides, if I ever want to move back, I can just curl up in a ball and wait!
X

The worst is when you run out of monospaced fonts and have to use variable-width variables.
Mount St. Helens

It's a good mountain but it really peaked in the 80s.
Alive or Not

Computer viruses currently fall somewhere between prions and fire.
Common Cold

Not even metapneumovirus, easily the common cold virus with the coolest name, warrants our sympathy. Colds suck. No mercy.
Coronavirus Polling

If you want to see the polling questions we agree on MOST, you can check out Chapter 24 of my book How To, where I got the Roper Center on Public Opinion Research to help me design the world's least electable political campaign platform.
Preprint

DOWNSIDES: Adobe people may periodically email your newsroom to ask you to call it an 'Adobe® PDF document,' but they'll reverse course once they learn how sarcastically you can pronounce the registered trademark symbol.
Error Types

Type IIII error: Mistaking tally marks for Roman numerals
2020 Google Trends

As the 'exotic animals in homemade aprons hosting baking shows' YouTube craze reached its peak in March 2020, Andrew Cuomo announced he was replacing the Statue of Liberty with a bronze pangolin in a chef's hat.
Turtle Sandwich Standard Model

It's possible the bread and shell can be split into a top and bottom flavor, and some models additionally suggest Strange Bread and Charm Shells.
Everyone's an Epidemiologist

If enough people uphill decide to try the rolling strategy, they can make the decision for you.
Coronavirus Genome 2
![[moments later, checking phone] Okay, I agree my posting it was weird, but it's somehow even more unnerving that you immediately liked the post.](https://imgs.xkcd.com/comics/coronavirus_genome_2.png)
[moments later, checking phone] Okay, I agree my posting it was weird, but it's somehow even more unnerving that you immediately liked the post.
Coronavirus Genome

Spellcheck has been great, but whoever figures out how to get grammar check to work is guaranteed a Nobel.
Use or Discard By

One of the things of bear spray says that, and I'm not one to disobey safety instructions, but there are no bears around here. Guess it's time for a camping trip where we leave lots of food out!
Sourdough Starter

Once the lockdown is over, let's all get together and swap starters!
Garbage Math

'Garbage In, Garbage Out' should not be taken to imply any sort of conservation law limiting the amount of garbage produced.
Coronavirus Charts

Adding data for South Korea but with their cases scaled to match the population of Japan and the land area of Australia, and vice versa.
RIP John Conway

1937-2020
Thermometer

I hate how many times you have to press it to get to the system normal people use, degrees Rømer.
New Sports System

Under my system, boxing and football suffered, pair figure skating still worked but had to adapt by dropping some moves, and pro wrestling was actually completely unaffected.
Homemade Masks

I'm going to change the sign so the pole is horizontal and the sign is mounted on the front like a plunger, so I can carry it around like a lance to gently push people back if they try to approach.
Scenario 4

Remember, models aren't for telling you facts, they're for exploring dynamics. This model apparently explores time travel.
Collector's Edition

I'm sure you can find some suitable worldbuilding material if you scavenge through the archives.
Pathogen Resistance

We're not trapped in here with the coronavirus. The coronavirus is trapped in here with us.
6-Foot Zone

Technically now it's a 34-foot zone.
Recurring Nightmare

Oh thank goodness, I forgot my clothes, so now everyone's looking embarrassed and backing away.
Sabotage

So excited to see everyone after my luxury cruise home from the World Handshake Championships!
Exa-Exabyte

To picture 10^18, just picture 10^13, but then imagine you connect the left side of the 3 to close off the little bays.
Coronavirus Worries

Offscreen, bottom left: Whether the custom :coronavirus: Slack react emoji you just added was public domain or whether you should have put a Creative Commons credit somewhere
Coronavirus Research

"Also, reading 500 coronavirus papers in a row and not sleeping? Probably not great for you either, but I haven't found any studies confirming that yet. I'll keep looking."
2010 and 2020

2030: "I just bought a house for one bitcoin. No, it's the equivalent of a dollar. Houses are often transferred for a nominal fee because the buyer is taking responsibility for containing the holo-banshees in the attic."
Symptoms

This medicine says it may cause lightheadedness, dry mouth, and blurred vision, but my head feels incredibly heavy, water is pouring from my mouth, and I can see individual hummingbird wingbeats, so I think I'm fine.
Scientific Briefing

"I actually came in in the middle so I don't know which topic we're briefing on; the same slides work for like half of them."