The price of bitcoin has returned above $9,000 for the first time since March, having risen by more than a third in value over the last two weeks.
Do you think this is a good sign?

It's a good sign for sure. Bulls are definitely back and so is optimism in the market. A lot of people thought that bitcoin was just going to continue dipping, but we did find a pretty strong support level which pushed us to a huge rally to where we are right now.
However, I don't think that this is the definitive start of a bull market.
I think we're nearing the end of the current rally, and a correction is coming soon. The resistance at $10k is still strong, and I don't think that BTC can keep on increasing in price without any sort of adjustments. Basically I'm carefully optimistic, I'm prepared for if prices keep on dipping, but I do think that the worse end of the bear market has passed.