<div>RZS writes:</div>
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<div>> BTW, are we forced to say that that was on the very last day possible,<br>Friday 6th Adar 2490? And that on that day he wrote 13 copies? Or is<br>it possible that the dictation started several days or weeks earlier,
<br>some time after Rosh Chodesh Shevat, which makes his feat of safrus<br>slightly less formidable, though I don't know any sofer who could write<br>13 sifrei torah in less than 4 years! <</div>
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<div>I just wanted to present a Mar'eh Makom. The Pachad Yitzchak (R' Yitzchak Lampronti of Chazal and science fame) testifies that he the Ramchal write his Chiddushim in Nistar so fast, filling up a huge page so quickly, that it was only possible to do so "B'Derech Nes" (his words!)
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