Bitcoin (BTC-USD) bounces up 10% to $47.4K as investors pull back some from U.S. equities and El Salvador starts mining bitcoin using volcano power. Ethereum (ETH-USD) jumps to $3.22K, Litecoin (LTC-USD) climbs 8.6%, Cardano (ADA-USD) rises 6.7%, and Binance Coin (BNB-USD) gains 9.8%. Reassurance from Federal Reserve Chair Jerome Powell on Thursday that he doesn't plan to ban cryptocurrencies, including stablecoin, may be providing some support. El Salvador has mined 0.00599179 bitcoin, or ~$269, using power from a volcano, according to a tweet from El Salvador President Nayib Bukele. He added that the country is still testing and installing, but it's the first bitcoin mining from the volcano. In the past month bitcoin (BTC-USD) has declined 11%, worse than the S&P 500's 4.8% drop. With the beginning of the new month, some crypto fans express their hopes for bitcoin using the hashtag Uptober. SA contributor Ariel Santos-Alborne maps out why he thinks bitcoin