If Tesla (EM) did not sell all that BTC, then it would be more accurate to say that it is an unrealized profit - and EM has stated that it has no intention of selling that BTC, although this may change at any time.
This lol. Technically, it really isn't considered as "profits" if the assets haven't been sold yet in the first place. It's quite misleading, but I guess Cointelegraph's goal was to make it misleading enough to trick people into talking about it, and here we are. 🤷♂️
Yep, it's just a book value.
But teaching people this is really difficult. I recently had a case with a friend. He had bought Doge and in the meantime he had a "profit" of about 120%, but he had not sold and now stands at -10%. He complained it's not fair that all of his profit is gone now

I then told him there is no profit until you sell. So you never made a profit, and so you never lost a profit. He looked at me like I was out of this world.