Some reasons 2018 could be the best year yet for cryptocurrencies.

I explained why a potential cryptocurrency bubble could burst in 2018. Many people asked me afterward: If I'm so skeptical about the space, why am I invested in it?

Let me clarify. I'm someone who always calculates the potential upsides and downsides, and I think many people take unnecessary risks: They either invest too much or too little because they don't do proper analysis.

So I want to highlight five reasons why 2018 might be the best ever year for cryptocurrencies and why I'm heavily invested in them.

Bitcoin (BTC) is the most important cryptocurrency. Most government-backed money that goes in and out of crypto goes through bitcoin, so what happens to the original cryptocurrency affects the entire market.

The token's market dominance stood at about 40 percent as of Wednesday. By my estimates, however, it's clear bitcoin's market dominance should return to 75 percent of the entire space.

I actually see a 150 percent potential upside in bitcoin for 2018.

Why? Well, BTC is still dominant. It has the biggest user base and the biggest industry. Still, it faces a challenge in scaling up for wider use.

Bitcoin now can't handle more than six or seven (or, with the "Segregated Witness" protocol upgrade, it's 12 to 14) transactions a second. Compare that with credit cards, which involve thousands of transactions per second, so the criticism about bitcoin's ability to be useful at larger scales is understandable.

The last reason why 2018 will be a stellar year for cryptocurrencies is that this will be the first year of solid institutional money flowing into the ecosystem.

It is estimated that $10 billion to $12 billion has so far flown into the crypto ecosystem, but that's nothing compared to what institutional funds could invest. Since those first funds propped up the market to around $500 billion, the next $10 billion to $12 billion, which is peanuts for some funds, could double the market cap this.

To sum up, the likelihood of all five factors happening is not 100 percent. But I still see a probability of 70 to 75 percent. And each one of them might grow the market's overall size 50 to 100 percent — maybe even 200 percent.

If you combine those factors, the market's upside potential could rise to up to seven or eight times the present levels. While this might not be as much of a multiple as what we saw in 2017, it is much higher in absolute terms. That could make 2018 the most successful year in crypto ever. Additionally, the growth might not be based so much on hype or hope as it would be on solid foundations..