-snip-
What are your thoughts on using past charts(candlesticks) that similar current ongoing charts(candlesticks) to make price predictions?
There is no prediction that is 100% accurate, so the results of technical analysis will be subjective depending on how traders interpret price history which they then process into an entry signal. Actually, it is not a matter of trust but of possibility, in fact traders are very flexible to change the type of analysis used if it is not profitable enough.
I have been in trading for a long time and traded in forex, option, stock and crypto market. From my experience i can say that technical analysis will work in crypto as long as there isn't any new events in action. Any negative or positive news about the market can prove a TA totally wrong. This is the reason i try not to trade when there is any upcoming news events or the market is volatile due to any ongoing news events.
Since most bot is following some technical analysis method, it ought to work because the majority of trader especially those who are using bot follows this method. I agree with one of the earlier replies that there is no 100% accurate in terms of trading since there is always a variable that make changes in the market unpredictable. One of which is stated in the quoted reply that when a good news is suddenly released and affect the sentiment of the majority of the trader, the TA will fail since it is based on the past history of the trade.