Dear 43 Things Users,

10 years after introducing 43 Things to the world, we have decided we have met our last goal: completing the incredible experience that has been 43 Things. Please join us in giving one last cheer to all the folks who have shared their goals with the world, as well as all the people who have worked at The Robot Co-op to build this incredible website. We won a Webby Award, published a book, and brought happiness to a lot of people.

Starting today, 43 Things users can export their goals and entries from the site. Starting August 15, we will make the site “read only”. 43 Things users will still be able to view the site and export their content, but we won’t be taking any new content from users. We hope to leave the site up for folks to see and download their content until the end of the year. Ending on New Year’s Eve takes us full circle.

It has been a long ride (one of our original goals was to "build a company that lasts at least 2 years” - we beat that one!) While we wish the site could live on, it has suffered from a number of challenges - changes in how people use the site, the advertising industry, and how search engines view the site. We wish the outcome was different – but we’ve always been realistic about when our goals are met and when they aren't.

As of today, you will be able to download your goals and entries. See more about that on the FAQ page. Thanks for 10 great years of goal-setting and achieving.

- The Robots.

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learn calculus


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crackerjack147 6 months ago

ScarrletRavenDerivatives and Proofs

So, I’m in the early stages of learning Calculus. I recently used an algebraic proof to prove the derivatives of sin x and cos x. It was very satisfying to do. Getting there step by step. 8 months ago

ScarrletRaven 12 months ago

SpookyCakes 12 months ago

Chad_Nickle 20 months ago

jack7223 21 months ago

jasomeye 22 months ago

Luke Chaney 23 months ago

Born of Stardust 2 years ago

Born of Stardust Finding Intergrals Using U-Substitution---DARE TO SUCK!

Today I learned how to do integrals (they’re basically just backwards derivatives or antiderivatives), and then we went on to figure out how to do integration using U-Substitution and how to find the integrals of trig functions. I am excited, because my brother told me that some of the material that we went over was Calculus II material!

When I first endeavored to learn calculus, I was scared because I thought that it would be difficult and that I might not be able to do it. But I’ve found that once I get past that ridiculous fear to not automatically succeed at everything I do, then Calculus wasn’t so hard. I still have to remind myself of the rules sometimes, but I know how to do Calculus now. And it’s all because I 1. had an amazing teacher in my brother and 2. because I DARED TO SUCK. Daring to suck is wonderful, because it means that you are trying! It has been scientifically proven that it is exponentially better to try and suck than to never try at all.

I didn’t let the looming fear of failing at Calculus stop me from learning it. I built it up so much in my mind as an imposing figure, but like all imposing figures, once you understand it a little better, it’s less scary and more beautiful.

I might check this off my list soon, maybe after a few more lessons or maybe after this entry. We’ll see. But I am so proud of myself. I can do anything that I put my mind to. I might suck at it at first, but I will become better over time with practice. We have such little time on this Earth, why spend it being afraid when there are so many wonderful things to learn and do!? 1 year ago

mendthegap 1 year ago

winstonyoung92 2 years ago

sepulchrallyspeaking 2 years ago

Born of StardustOde to my brother!

Mathematical mind at the back of the room
Quiet and thoughtful unless one knows you well
Time unveils your sense of humor
Oh, you can be a pain in the derriere
But so can I
But so can I
My magical, magnificent, maestro of math
teaching me calculus during summer break—your one grasp for freedom
Talented and kind in the shadows you hide
Well not really, but some people doubt you exist
Lucky am I to know the flower that blooms in the dark
You don’t like being compared to a flower?
Lucky am I to see a masked hero hidden in daylight among the cracked cement sidewalks where lurkers loom and bicycles dash past
Lucky am I to see the exquisite quasar off in the distance that few have seen
Lucky am I to see inside of your brain to glimpse who you are
Lucky am I to know you
Thank you
Thank you
Just for being you

I’m learning so much! I’m so greatful to my brother for teaching me and so proud of him! I cannot wait to be able to check this off of my list. :) 2 years ago

Agent77 2 years ago

Emanl Notarea 2 years ago

kiss0050 2 years ago

user18014 2 years ago

mybignose 2 years ago

Lpargnuc 2 years ago

user13262 2 years ago

karie chamberlain 3 years ago

lucidriled 3 years ago

John Williams 3 years ago


Back in high school our teacher wasn’t the best and I guess I ended up getting a mental block about it all. I need to re-learn what I forgot and learn what I never got to fully retain. Calculus doesn’t really have much to do with my career, but I want to be able to say I can deal with Calculus just for the heck of it and to feel better about myself, lol. 3 years ago

Hyperglow 3 years ago

ajnorster 3 years ago


This has been one of the many objectives I keep putting off until the last minute. For once and for all, I have to move forward and reach this milestone. What has always prevented me from getting the most of my classes is over-complicating (my own fault) the material. I must keep things simple in the beginning. 3 years ago

Opheliya 3 years ago

AylaOnline Resources

Khan Academy is arguably one of the best resources out there. I recommend anyone trying to tackle this goal, start there. Personally, I’m still on trigonometry but I’m slowly working my way up. 3 years ago

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