Speculation Rules prefetch

<div class="atlas"><div class="head"><b>SPECULATION RULES · prefetch</b><span class="pulse"></span></div><div class="stage"><div class="sp-link box" id="sp-link">Read next page <i id="sp-cursor">↖</i></div><div class="sp-flow"><span>hover</span><i id="sp-request"></i><span>prefetch</span><i id="sp-click"></i><span>click</span></div><div class="sp-note mono" id="sp-note">link available</div></div></div>

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let phase=0;function tick(){document.getElementById('sp-link').classList.toggle('on',phase>=1);document.getElementById('sp-request').classList.toggle('on',phase>=1);document.getElementById('sp-click').classList.toggle('on',phase>=2);document.getElementById('sp-note').textContent=['link available','document prefetched','click uses prepared document'][phase];phase=(phase+1)%3}tick();setInterval(tick,700)