It is impossible to predict with certainty when a specific blockchain will reach all-time highs. The value of a blockchain can be affected by a variety of factors, such as overall market conditions, adoption and usage of the blockchain, and announcements or developments related to the project. Additionally, the cryptocurrency market is highly speculative and subject to significant volatility, which can make it difficult to predict future prices. It's always important to conduct your own research and assess the risks before investing in any cryptocurrency.