Computer graphics processing and selective visual display system

A computer-implemented method for computer graphics processing and selective visual display, comprising:

• a. executing coded instructions for retrieval and presentation of content to a user;
• c. exhibiting digital content to provide a medium for user interaction with the content presented;
• and
• d. storing in memory machine-readable instructions, or content files, or user data, or system operation logs;
• wherein the method comprises:
• rewriting text content to create a new version of the text content;
• displaying a content element from a first version of the text content;
• presenting sequential content elements from the first version;
• providing switching between presentation of the first version and presentation of the new version while maintaining a corresponding position between versions;
• and
• wherein the method includes sequencing logic that governs order of progression of presentation of content elements.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, cause operations for selective visual display, the operations comprising:

• receiving text content;
• partitioning the text content into a plurality of content elements;
• generating one or more rewritten versions of the text content partitioned into a sequence of content elements;
• generating, by sequencing logic, for each of the text content and for each rewritten version, an order of the content elements and timing information allowing determination of presentation duration for each content element, the presentation duration being a monotonically non-decreasing function of at least one of (i) a measure of length of the content element or (ii) a predicted or measured duration of corresponding text-to-speech audio;
• and
• transmitting the content elements of the text content and the rewritten version or versions together with the order and timing information to a device for selective visual display and, optionally when audio is additionally generated, audio presentation.