Australian analyst Michael Pizzino believes altcoins are on the rise and an altcoin season may be approaching.Pizzino analyzes two charts: True Bitcoin Dominance and True Altcoin Market Cap.The True Altcoin Market Cap has broken above a six-month downward trendline, indicating a bullish state for altcoins.If the altcoin market can hold or break the resistance level at US $480b, an altcoin season may be in the early stages.