I am not convinced on Bitcoin as an investment as I have absolutely no idea how to value it.
I like the blockchain technology. It is no doubt a digital disruptor for all things that need to be securely traced now and in the future. I don't know if the value of a Bitcoin is an investment in the blockchain technology itself or in Bitcoin as a currency...ie. ' a promise' it can be exchanged for a predictable amount of 'goods and services' at some time in the future? (Marcus Padley talks about this on EquityMates).
Until today I had an ethical dilemma with Bitcoin as a potential vehicle for money laundering and corruption thinking a centralised banking system might have a better chance of rooting it out. However this Motley Fool Article explains how the FBI tracked a $2m ransom back to the perpetrator using publically available blockchain data. This could be a real plus for Bitcoin and other crypto currencies in the future.
As a big advocate for sustainable development I still have an issue with the huge energy consumption. I understand that Bitcoin is moving to greener energy where it is cheap. However, at this stage there is still a huge amount of cheap, dirty coal power used to mine Bitcoin in China. I've heard the argument that one day all energy will be green and free. This might be possible, but it is hard to comprehend this, and will it be limitless? If energy were free there would be so many competing uses eg. food, water, transportation etc. If only we had a crystal ball! :)