For presenting data chunks for a working memory event, a processor detects a trigger policy for a working memory event being satisfied by raw data from a sensor. The trigger policy is based on user attention. The processor further categorizes a data chunk for the working memory event from the raw data. The processor detects a query policy being satisfied by a query from subsequent raw data. In response to the query policy being satisfied, the processor identifies the data chunk based on the query. The processor further presents the data chunk.