pain_perdu
The following was advice an accomplished PhD wrote to me discouraging me from co-founding Pretty Litter which would eventually become a billion dollar (sold to Mars) CPG business: “here is some free consulting advice: you need to think very carefully through the economics and competitive environment of the cat litter business. At the end of the day there needs to be a real business, not just an exercise in PR and crowdfunding, and the risk-reward in cat litter is not at all appealing.

Cat litter is a commodity product, and there are huge brands that know how to manufacture, distribute, advertise, and market it at massive scale. There are already other color-changing cat litter products. Your team has zero expertise, IP, or competitive advantages in manufacturing, chemistry, consumer products, animal health, diagnostics, or distribution. Cat litter is not an industry that needs disruption.”

a_bouncing_bean
- Fake it until you make it.

While there is some truth to this depending on the context, for the most part, especially in software engineering world, you don't know everything. Don't be afraid to say if you need to research something or do POC or investigation. No one will be mad at you and if they are, you don't need to be working with that person. I spent many nights frantically trying to figure out things, to make it seemed like I was up to par, when I should have been more chill about it.

- Do what you love, and the money will follow.

My parents, my high school guidance, society, everyone told me this thing in 2002. Many of my friends went into music education and I can say only one or two got a job in this field. Then 2008 hit. This view, it is the survivors bias, what you should do instead is what will make you money, then figure out how to use that skill to do or add to what you love.

elnatro
There is a lot of bad advice I’ve received over the years:

- you don’t need to go to a good university, this one (low tier uni in my country) is fine.

- don’t fight bullies back.

But the worst is not receiving bad advice, but receiving no advice at all, and staying in a dead-end job and city for too many years. Having no emotional support early in life leaves yourself “damaged” and gives you a cynical view of the world.

gtmitchell
"Just be yourself". Such terrible, useless advice to give to someone who is struggling with dating.
genter
Don't become a computer programmer, the industry is being outsourced to India.

So I became a plumber instead. Don't have to worry about someone from India flying here to crawl under a house to snake out a line.

p0d
"You are ugly and need to learn to live with it", from my Father at my 18th birthday.

I share this not to garner sympathy. I am more than 30 years over it, but it did impact more than I understood at the time. If you are still hung up on historic lies I would recommend you find a way through or you they will dent you, even if part of you knows they aren't true.

My view of myself was later shaped by christian faith. The Bible tells me I am fearfully and wonderfully made. I have an attractive wife and good looking children but even that was not even enough to fix the dent. As humans we do not have all truth inside our own heads. We need a second opinion on much of our internal thoughts and processes.

jurassicfoxy
From my mother, a very emphatic "Don't sleep with women unless you love them!"
jszymborski
I had a mortgage broker try to get me into a variable rate mortgage I truly couldn't afford just before the rate hikes.

"The Bank of Canada won't raise rates, they can't, it'll tank the market."

I knew even then that was unhinged financial advice. This was a man who had a radio show about finances in Montreal.

He also tried to saddle me with a real estate broker who only showed properties to me that she was selling (and outside my price range/location).

If I followed his advice, I'd have had to sell the house the same year I bought it.

The story ends happily, I bought a great place that was affordable and a mortgage that I've never struggled to pay.

Keep a wide birth of Terry Kilakos if you are in Montreal folks.

chuankl
A meta-comment: whether an advice is good or bad should not be assessed based on a specific outcome.

You can follow a good advice and end up with a bad outcome. Similarly, you can follow a bad advice and end up with a good outcome. This is more obvious in poker (Annie Duke wrote a few books on the topic), but I think the same principle also applies to life in general.

Sure, "I went against this sensible advice and look at what I accomplished!!" makes for good storytelling. But that does not help us decide which advice to follow now and in the future.

horsellama
In 2015: “don’t waste time learning CUDA”
francisofascii
A college CS professor told me to go into management. The thinking was, as you get older, it will be hard to continually compete with the younger developers and keep your skills current. After 20 years I have stayed a developer, and have seen former developers who went into management get laid off. One former manager went back to being a developer.
dteare
Get a safe, secure job.
joseda-hg
I remember this one, not only because it was bad, but it really made me angry when I got it

"Don't go into programming, you're not in Silicon Valley and life isn't like what you see on the internet, you have a good thing with your grandpa, just become a Mechanic like him"

My biggest passion in life have always been with computers, and I know (Now even with empirical experience) that I'm a horrible fit for a mechanic

But lets say I wasn't, and take it that it wasn't said in bad faith; It still enraged me that he didn't thought I'd be capable, I managed to learn and earn enough, escape my birthplace and (Sadly) The good thing my grandpa had going on went down in flames (Due to external circumstances)

It's been years and it still pisses me off, but I'm confident that he doesn't even remember that we ever talked about it

lifestyleguru
Be nice, forgive, don't retaliate, work hard.
msarrel
That's a great idea, take it to an incubator.
charles_f
You can't joke in the office, you won't be taken seriously if you do and that will prevent you from advancing
dakiol
Work dignifies man/Work is a precious thing.

Or something like that. I do think that working on your own thing (like a company you start or a project you created) is a precious thing. Working for others is not; it’s a simple exchange of time for money.

pajamasam
Our school's headmaster advised me not to take computer science classes as they are "too difficult." It ended up being the class in which I got my best marks, I was the top student and made my living out of programming ever since.
subsection1h
Emacs is archaic and dying. Use JEdit instead. JEdit is the new Emacs. JEdit is already better than Emacs because it's being written using an excellent new language named Java.
mikewarot
"You just need to apply yourself, Mike"

I had no idea what that meant, for decades.

Crier1002
"work smart, not hard"

i think this advice is a bit too vague and it's just something people say to sound smart to trick people into thinking there's a shortcut to mastery

i genuinely believe that if you work hard to hone your skill on something, it will do you good. if you want to get good at something, you gotta put in the hours, the grind. e.g. to learn how to play a tennis, you gotta, you know, actually get down to the court and play tennis instead of watching tutorial on how to play tennis. Same goes with programming, music, etc.

now pair working hard with the ability to retrospect -- you'll master a lot of skills in life

thelastparadise
"Bitcoin is a ponzi scheme" ... in 2010
shrimp_emoji
Try Clojure
sameerds
"You chose this. Keep your head down and work at it. It will all work out in the end."