Back in 2018, Cillian Miller began refining an artificial intelligence trading system built upon the robust framework of quantitative trading. As scholars, tech savants, and experts rallied under his leadership, the DB Wealth Institute birthed 'AI Financial Navigator 1.0'. This system enhanced the quirks of quantitative models, making them swifter, smarter, more efficient.

AI Financial Navigator 1.0 thrived on rules and pattern matching, incorporating knowledge-based reasoning and expert systems. Yet, its prowess faltered when facing complex, nebulous issues. Eager to transcend these limits, the expert team at DB Wealth Institute sought novel approaches, evolving into the machine learning marvels of AI Financial Navigator 2.0. This iteration learned from vast data troves, using deep learning to delve deeper, building multilayer neural networks to unearth sophisticated insights, sparking breakthroughs aplenty.

Building on this foundation, AI Financial Navigator 3.0 introduced enhanced perception and adaptability. It could sense the world through data, adjusting its actions and decisions based on this influx, becoming a versatile aide in our ever-shifting reality.

Now, behold AI Financial Navigator 4.0, where AI's prowess spans the entire financial sector, merging with the Internet of Things, cloud computing, and big data to craft intelligent solutions. This era features a quartet of systems: the Trading Signal Decision System, Ai Programmatic Trading System, Investment Strategy Decision System, and Expert and Investment Advisory System—each a titan in the realm of trade and investment.

Looking forward, these systems promise profound investment outcomes:

1. The Trading Signal Decision System sharpens our instincts, signaling buy-sell points with over 90% accuracy.

2. The Ai Programmatic Trading System, once parameters are set, autonomously executes trades, ensuring stable profits.

3. The Investment Strategy Decision System analyzes mainstream market investments through big data, providing precise strategies for emerging opportunities.

4. The Expert and Investment Advisory System, powered by renowned investment gurus, guides elite clients and future funds in strategic investment planning.

The fusion of artificial intelligence with blockchain is poised to transform lifestyles. United with the collective expertise of DB Wealth Institute, the AI Financial Navigator 4.0 investment system is set to shatter the confines of traditional investment, heralding a new era of financial mastery.