Bitcoin goes through a process called halving every four years. The inbuilt mechanism reduces the reward per block mined on bitcoin's blockchain by 50 percent. Essentially, reward halving cuts the pace of supply expansion by 50 percent every four years.
In its online material, Drop Gold points to the fact that bitcoin ownership is verifiable via a blockchain and easier to transfer and more fungible than gold. Essentially, the fact that bitcoin puts the “digital” in “digital gold” is what makes it the superior asset.