What was your biggest miscalculation?
Mine:
Back in the 1970s I said that the new fad, cell phones, would never catch on. I figured we all had phones at home, in all businesses, and on every street corner. Who in the world, besides heads of state and ceo’s, would need one in your pocket?
How was that prediction lol.
^ Lmao
I have been historically wrong about my projections of the future too often. As time goes by my methods and systems of calculating the future value of things have improved.
that id be vegan for the rest of my life.
When I accidentally bought a french burning shadows booster box off an online canadian store (I am canadain) instead of an english one. I didn’t consider that they would sell anything but english and didn’t see the FR standing for french in the title. Woops.
Haha, I thought the same thing the first time a saw a camera on a flip phone. The quality was horrible and I thought who in the world would want this?
I guess I temporarily forgot about Moore’s Law 
I should have bought more 1st Ed Base back in the day. Since I made that mistake yesterday, I will buy some today! 
As a Psychologist, I make them quite a lot, just general predictions about societal trends based on typical personality tropes & how people will respond to studies I have carried out. If anything, I’ve come to realise that people are wildly unpredictable & that anything can & will happen 
To be fair, your logic was sound. Cell ‘phones’ aren’t really phones, at least, we don’t use them for that purpose and they didn’t catch on because they were phones, but because of texting and mobile internet usage.
I figured that an 18 month research contract tacked on to the end of my undergrad work couldn’t possibly be a bad idea since I had no plans.
Met my wife two days later and ended up having to spend over a year in a long distance relationship because I had to finish out the contract.
Years ago my father said to me that one day the world will all be connected by computers. I laugh and thought that’s impossible. Wish I would have bought stock in Microsoft or Google. 
That bitcoin would reach $20k a pop, back when they were 3 cents a pop.
Thought social media networks were stupid and a waste of time, would never catch on lol
Well at 2/3 correct you didn’t do that bad.
When I first started collecting again I thought BS2 was the next big thing.
moment of silence for our fallen brother
I’ve bought a pizza once using Bitcoin. Since me and my friend got our Bitcoin for free in some promo or something we didn’t think off it.12 Bitcoin worth of pepperoni pizza 
Oh and another one…Back in 2007 it didn’t go well with a Dutch IT company. Me and my dad joked about buying stocks of that particular company. They were going for € 0,10-0,12 at the time. We expected them to go up because, why not? The company was old and they were in negotiation about buying bought or at least sell partly stay alive. We never pulled the trigger. The shares went to € 0,04, trading was halted. We were happy we didn’t go for it. In end, before the company merged completly into another, shares went to € 0,25-0,30. Should’ve pulled the trigger
Looked at buying afterpay share at $4 a year or two ago. Didnt buy them because i read some post on a forum. It’s now $25.
I bought a several shares of Facebook stock the day it came out at $34 dollars a share. It dropped over the next few days and lots of news about how it was a disaster. I sold it right away and it’s now worth about $178.
I bought 26 shares of WWE Wrestling stock. Picked it up for about $20 each and sold it a month later at $21. After that it almost immediately doubled and is now at $94.
Would have had several thousand extra dollars if I didn’t sell.
And that’s when I decided I can’t invest in intangible goods, and that investing is not the same as flipping.