Here is how to create a paper wallet, follow all the instructions including the live cd etc:
https://www.coindesk.com/information/paper-wallet-tutorial/
The bitcoins will be safe if you store the paper wallet (and a copy or two) somewhere safe.
As far as the “bubble” bursting (or “bursted” as he says) you have no control over that. It just depends on the time frame.
https://www.coindesk.com/information/paper-wallet-tutorial/
The bitcoins will be safe if you store the paper wallet (and a copy or two) somewhere safe.
As far as the “bubble” bursting (or “bursted” as he says) you have no control over that. It just depends on the time frame.
I guess now I understand how this works. I think a paper wallet will be fine, no need for a hardware wallet. I will divide the 10 BTC in half Bitcoin, half Ether. So the process is, buy from exchange, sell BTC for Ether, create one paper wallet for each (offline and with the disposable computer), transfer funds to the paper wallets, then hold for some time, transfer it all to the exchanges by importing the paper wallet to a software wallet on the disposable notebook and then depositing it on the exchanges, convert into FIAT currency, done.
Over what time frame? You had better clarify that, because it could be "indefinitely" or whatever suits your friend.
He did say "however long you want", so I think I will stop when it reaches 20% appreciation. No kidding with somebody else's money.
Thank you both for replying, too!