I'm new here and don't know much about bitcointalk forums. But I thought about Bitcoin for a while. At one point I wondered what it would be like if Bitcoin was a physical currency instead of a digital currency. It would not have gained so much popularity, and its price would not have increased so much. If it were a physical currency, it would be very difficult to buy, how would you buy? And had to go to different stores to sell or buy. How difficult it would have been then. Are you thinking about this?
Haven't you read about physical bitcoin called Casascius? Due to regulation in United States, the coin was stopped being manufactured. So if there is physical bitcoin, the government would have seen an easy way to stop its sad adoption and it would become a useless coin.
But bitcoin may jot even be of any value if it is only existing in physical form. The blockchain that is decentralized and its digital for makes it an investment that make sure we'll adopted today.