(Updated by Concept: Maximum Basic Goodness 2) A blockchain-based system for voluntary wealth redistribution. Components:

Using Generative Adversarial Networks combined with neural machine translation (NMT) generate believable English->Foreign translation models for de novo non-existent languages. How can Tolkien’s creation of Elvish be reproduced automatically for novel language instances? See also Concept: Phonotactics embedding

A cross-platform mobile app that allows adding an audio track and setting rehearsal marks (A, B, C, etc) and then tapping a button to trigger playback from a particular mark. React Native?

Ad-hoc dinner groups. Ratings let you distinguish leeches.

World Wide Web current failings: Solution: <object> is like an <iframe> The hash attribute has no effect? Just there to help developers? But it violates DRY because it can be computed.

User rates dishes purchased at restaurants. Make recommendations for other dishes (as function of adventuresomeness) using collaborative filtering with other users’ ratings. Strong emphasis on privacy / minimizing data collection. Simplicity. Users could be rated by how daring they are, clustered by their typical tastes, etc.