Cathie Wood, CEO of Ark Invest, forecasts that bitcoin, the world’s largest cryptocurrency by market cap, may hit $1 million by 2030.

In a new interview, Lyn Alden, the author of the book Broken Money: Why Our Financial System Is Failing Us and How We Can Make It Better, told TheStreet Crypto that Wood’s financial forecast was realistic, but suggested a more conservative timeline, indicating that 2035 might be a more probable.

“A million-dollar bitcoin is in the cards,” Alden said. “I do think that’s a level that would make sense for bitcoin to eventually get to if it continues to be the global leader in digital money and a portable store of value.” However, she tempered this bullish prediction with a more measured approach to the timing:

“Maybe a million by 2030 is a little bit aggressive,” Alden said. “If I were to put my guess hat on, I’d probably give myself until 2035.“

Alden compared bitcoin to gold and was optimistic about the long-term positive outlook for the cryptocurrency. “I do think that bitcoin could be as large or larger than gold,” Alden said. “Gold’s probably increased its market share, it’s been doing well in recent years. I’m still bullish on gold.. I think that both gold and bitcoin are going to have more prominence in the years ahead.”

Alden also underlined that bitcoin remained the top buy among cryptocurrencies and said that investors should include it as part of their portfolio. “Anyone in traditional finance that has no bitcoin positions should have a bitcoin position,” she said. “Obviously it doesn’t have to be all in... but not having any bitcoin is the easiest low-hanging fruit to fix.”

“Even if the thesis doesn’t work out, if you got 3% in, it’s fine. If it does reach those bullish outcomes, it’s good to be on the right side of that – even with a small position.”