Focusing on kinetic sound installations as the main creative medium, he integrates acoustic physics, multichannel systems, composite materials, and applied forces as his research direction. By investigating the intersections and overlaps across different domains, Cheng explores the extremities and ambiguities of consciousness boundaries within phenomenological fields. Furthermore, he expands this phase of the project into texts, short films, publications, and websites, aiming not only to achieve a more comprehensive outcome but also to lay the groundwork for the next stage of his exploration.
在續作《DOOMAIN: se(l)ves》中概念延伸至邊界極值與含混狀態之探索，他由哲學意象得到啟發，並依此觀點切入雙擺運動、電磁感應等物理作用，除從中汲取創作靈感之外也將其運用於裝置設計中。他將以動力聲音裝置為創作主體，結合聲學物理、多聲道系統、複合材質與施力方式作為研究方針，以不同領域間之未知交錯與重疊，探討現象場中意識邊界之極值與含混狀態。 他亦將此階段計畫以文本、短片、刊物與網站等形式擴延再造，試圖以不同角度將此計畫繫起象限間共存之相異，為尋得更具全面之成果外也為下一階段作準備及前導。