Would you bet your fortune on an email or a video?
Already the monetary currency of most countries is built on sand and one is well advised not to hold all one's assets in cash. Until someone finds a formula to produce gold cheaply (like diamonds), it will continue to be a useful currency with good inflation protection; of course, you wouldn't invest your entire fortune in gold either. But with Bitcoins, we have more of a situation like we had with investment certificates; they may also protect against inflation if everything works as promised, but they can also vanish into thin air very quickly.
Already the monetary currency of most countries is built on sand and one is well advised not to hold all one's assets in cash. Until someone finds a formula to produce gold cheaply (like diamonds), it will continue to be a useful currency with good inflation protection; of course, you wouldn't invest your entire fortune in gold either. But with Bitcoins, we have more of a situation like we had with investment certificates; they may also protect against inflation if everything works as promised, but they can also vanish into thin air very quickly.