If it was safe to assume bitcoin would rise 5% a month, which is someone like 80% after 12 periods like you mentioned, you would hear about Bitcoin everywhere.
It's all risk related and you can find the same type of returns elsewhere which just as much or even more predictability.
I'm also not sure it's fair to compare Bitcoin to an asset that's suppose to perform over 10-30 years.
Did somebody say "Bitcoins"?! I'm hearing that word everywhere!
OP did not compare Bitcoin to an asset that's supposed to perform over 10-30 years. In fact he said:
For the past 3 months, if not more, Bitcoin has increased at a steady pace of 5% a month without huge swings one way or another.
That's almost doubling in value each year. Most banks don't even give 5% interest in a year anymore. (They might have, at some put in the 90s or so, but not today).
A lot of people seem disappointed Bitcoin is so slow and stagnant right now, but seriously, how many assets can claim a consistent 5% per month increase?
Of course at some point the pattern will break, but you know, it's not a slow growth at all.
Although considering the amount of people that use Bitcoin right now compared to how many people might use it in the near future, the price will likely get some explosive growth just to keep up with demand, but that's not really the point.
Seems like a pretty fair assessment of the last three months and a believable outcome over the rest of the year even if slightly speculative.