Even the most ardent crypto evangelist must admit that bitcoin appears to have been the worst investment of 2018, at least in pure dollar terms.
I'm not an evangelist by any means, never mind being the most ardent, nor most knowledgeable but Bitcoin's anything but the worst investment anyone could have made in 2018. I can think of at least 2 fiat currencies that lost way more than 80% of their value last year.
Even if we're talking of 1 asset class (crypto), almost any other crypto was outperformed by Bitcoin (or rather, performed worse).
In pure dollar terms, the bitcoin price is on the downside of its largest-ever price bubble.
I think the largest bubble hasn't been surpassed... refer to post Mt Gox.
The year 2018 was the time of delivery, but no ICO turned up for the show. According to a research paper published by the Carroll School of Management at Boston College, almost half of the blockchain projects were found to be failing within four months of their introduction.
Sounds like an underestimation. Probably more accurate, half didn't even try to succeed. Half that did didn't have a chance. I can't think of any project in 2018 that should have delivered a product that could safely call itself a success. It was those in 2016 and 17 that really made something that at least had a community of users.