What does halfing mean? I have only bought one coin. I am trying to figure all this out before diving in.
Approximately every 4 years, the subsidy to miners is halved. Eventually, it will go to 0 and miners will only be paid from transaction fees. The subsidy is the method of creating new bitcoins, and the halvings limit the total supply to 21 million bitcoins. Other than ensuring that the supply of bitcoins is limited and some economic effects, the halvings have no direct effect on you or your bitcoins.
People like to celebrate Halving Day, so get ready to party next year!