This is what causes the price of Bitcoin to rise

The price of Bitcoin has risen 48% in the past 30 days.
Wondering what to make of the recent uptrend? According to Bitcoin Bull Tom Lee, Managing Partner at Fundstrat Global Advisors, the ongoing US-China trade war and the upcoming cyclical halving in 2020 are two major reasons for the current rally.
Digital gold?
As global stock markets fluctuate, cryptocurrency investors are looking to BTC/USD as a safe-haven investment, Lee told Yahoo Finance. "Interestingly," he said, "in periods where people are worried about the market, macro risks, policies, or geopolitics, we see Bitcoin rally."
Tom Lee said Bitcoin really is like "digital gold" right now, offering an investment that protects against market risks affected by trade uncertainty.
Bitcoin mining halving in 2020
In addition to being hit by China trade concerns, bitcoin is also approaching a cyclical milestone. Every four years, the bitcoin blockchain — the decentralized payment system that records all bitcoin transactions — undergoes a halving, in which the rewards for “miners” who record transactions on the blockchain are cut in half as a means of limiting the creation of new bitcoins.
Historically, the halving of mining rewards has been a catalyst for Bitcoin’s price as supply tightens .
“It’s exactly one year from today,” Tom Lee said. “Bitcoin has historically seen pretty big rallies around halvings because you’re literally cutting the supply. So, you have $9 million of Bitcoin sold by miners every day. On the halving date, it’s going to drop to $4.5 million.”
As for where the price of Bitcoin is headed next, Lee sees an uptrend: “You know, the market could easily absorb $4.5 million, so Bitcoin should go up substantially. You know, if you look at the breakeven point, if you know, the breakeven point for Bitcoin should be around $14,000 right now.”
Bitcoin recently broke through the $8,000 level for the first time in more than a year, doubling its gains. But the current level is still far from the all-time high of nearly $20,000 set in December 2017. (Coin Circle Mingge)