### Reasons to invest more in ETH:

1. **Diversification:**

- **Low predictability:** The future of crypto is very difficult to predict, just like the dot-com boom, it is unknown which company will survive in the long run.

- **Risk Management:** Owning both Bitcoin and Ethereum (about 75% BTC and 25% ETH) helps diversify and manage risk.

- **Growth Potential:** ETH's market capitalization is about a third of Bitcoin's, still a lot of potential.

2. **Different use cases compared to BTC:**

- **New currency vs. programmable currency:** Bitcoin focuses on becoming a new form of currency, while Ethereum aims to make currency programmable, enabling new applications like stablecoins and DeFi.

- **Broader exposure:** Adding ETH to a primarily BTC portfolio provides broader exposure to blockchain applications.

3. **Historical performance:**

- **Higher Returns:** History shows that portfolios with both BTC and ETH have higher returns and lower maximum % fluctuations than portfolios with only BTC.

- **Current Trend:** BTC has been outperforming ETH recently, suggesting this may be changing.

### Reasons to invest only in BTC:

**Focus on digital currencies/assets:**

- **Main Concern:** If your main concern is the decline of fiat currencies or issues like debt and inflation, holding Bitcoin makes sense.

- **Bitcoin Advantages:** Bitcoin has great advantages as a new form of currency/asset, with its design and community geared towards this goal.

- **Growth Potential:** The cryptocurrency market is huge, providing great growth potential for BTC.

### Conclude:

- **Crypto and blockchain ecosystem:** If you want to access the crypto and blockchain ecosystem, own multiple crypto assets, including ETH.

- **New digital money/assets:** If you are only interested in new digital money/assets, then only buy Bitcoin.