I am sure this must have been asked many times but please help me understand. what will happen if one billion people were to use Bitcoin as their currency of choice, will the infrastructure be able to handle the traffic and will the transaction speed become extremely slow?
basically every block mined processes transactions, and right now the block size can only support a certain number of transactions. this number is already being debated for being too small. so if one billion people users started using bitcoin theres no way the current size could support that many transactions.