The difference between what you paid for it and what you sold it for (minus all fees) is capital gains.
The federal capital gains rate varies depending on your income. California has the second highest capital gains tax rate but it also varies depending on income. Cali has 10 brackets and will tax you even if your income was only $1.

A sell price means nothing, just fools and their money. It is the buy price that matters. And that hit ATH at 17.4K today.

Normally I'd say $20K was reaching a bit except with the $2,000 swing days it might just happen in a few days. We are in uncharted territory.

Depends when you bought it. If it has doubled or more since then take your original investment out. Now no matter what you can't lose. If it rises still more sell a little more to buy some after a major correction.

Never look at the more you could have made. Look at the profit you did make.

$25 was my standard amount back then for supportive causes. I didn't do it as an investment and had no expectation anything would come of it. Just a like minded idea so I threw a little support at it.

Bought $25 worth when it was around 80 cents. Had no idea what I was doing; just supporting my libertarian brethren. Sadly and painfully that wallet is long lost. Didn't think about bitcoin for a few years and then got in knowing what I was doing this time. It was in low hundreds by then. Bought and sold a lot since then.

I've been picture all the major currencies lately as asteroids crashing toward Earth. From your descriptions it looks like the USD is falling a little slower than the others for the moment.

I believe there is life in the universe. I don't believe any of it has found its way here.

I pretty much dismiss this as lunacy. But for some reason I can't shake it.

http://eververse.webnode.com/

Not sure but have you seen this post: https://medium.com/gimli-project/gimli-partners-with-mock-it-esports-75b935beccf0

Tried not bad but not awesome either

I will get there next year, but I wouldn't be surprised to see it drop just below $1000 first.

My grandfather had a saying that always stuck with me: "No one ever lost money taking a profit."
You might lose potential profit but that isn't a real thing. My original investment is long out. Several reinvestments later, also removed. But I have plenty of coin in play. Saved my skin when we collapsed last time as I had sold half at a $1000. Bought back at $500 and watched it drop to $250. Bought back in then too but getting nervous I was chasing a dead horse and then the bounce back. Smaller moves as we bounced up and down $100 like clockwork for awhile. Then the big jump. Sold half at a $1000. Stung when it hit $2000 and I sold half. Half again at $3000. Then the correction and back in some at $2500. Lost a lot of potential profit. Locked in a lot of real profit. If we do get a plunge I'll be buying in all the way down and selling half at each $1000. And sleeping like a baby.

If I "jest held" I'd have a fraction of what I have. Even if I chase myself to the ground or halve myself out on the way to the moon... no regrets, a nice retirement and a hell of a ride.

Because my fellow libertarians were speaking of this as the next big thing I bought $50 worth of btc when they were in the 70 cent range. I didn't think anything of it I was just supporting cause as I had many of my fellowman's causes. Being the organized person I am and not really comprehending the concept I lost the wallet most likely instantly.

While I'm certain I would have sold in the pre $100 range I still look wistfully at that illusionary $70-80,000.   

Difference between Bitcoin and real money?

The phrase 'real money' always makes me chuckle.
The label 'Bitcoin' rarely does.

People that think this way are never content. You make your choices and move on.
"Gee  I could have bought bitcoin instead of this boat." robs you of the enjoyment of the boat and gains you nothing but regret.
Enjoy the boat.

Calculate the value of a gram of Bitcoin and get back to me.

I managed to misplace the first paper wallet I ever made within hours of making it. I spent a whopping $2.50 for 7.something BTC.
Not a big thing then. Smarts a bit now. It did teach me a good lesson in being careful though.

Money is just a means to power. Information is power.
And information is 'protected' to greater and lesser depending on what country you are in. The internet has had a huge impact on the relationship between government and citizen in many countries already.

It's not nowadays it is human nature to resist change. Look at any innovation at any time and read what they were saying. The newspaper editorials way back when they were discussing putting electricity in homes are hysterical (In both senses of the word.)

The internet did make it easier for the 'common Joe' to spread whatever idoicy he cared to though.

The GDP of Scotland is just under a $250 billion. Still a large number in terms of BTC capitalization. But a bigger problem in my mind is what do the rural areas with no internet (and often no mobile service either) do for currency in a country with no physical coin? And are all businesses regardless of size and model going to be required to have internet and equipment to be in business? Will citizens be required to have smartphones to buy groceries and a computer to pay the heating bill?