not true
i can type ACETYL*SERYL*TYROSYL*SERYL*ISO*LEUCYL*THREONYL*SERYL*PROLYLSERYL*GLUTAMINYL*PHENYL*ALANYL*VALYL*PHENYL*ALANYL*LEUCYL*SERYL*SERYLVALYL*TRYPTOPHYL*ALANYL*ASPARTYL*PROLYL*ISOLEUCYL*GLUTAMYL*LEUCYLLEUCYL*ASPARAGINYL*VALYL*CYSTEINYL*THREONYL*SERYL*SERYL*LEUCYL*GLYCYLASPARAGINYL*GLUTAMINYL*PHENYL*ALANYL*GLUTAMINYL*THREONYLGLUTAMINYL*GLUTAMINYL*ALANYL*ARGINYL*THREONYL*THREONYL*GLUTAMINYLVALYL*GLUTAMINYL*GLUTAMINYL*PHENYL*ALANYL*SERYL*GLUTAMINYL*VALYLTRYPTOPHYL*LYSYL*PROLYL*PHENYL*ALANYL*PROLYL*GLUTAMINYL*SERYLTHREONYL*VALYL*ARGINYL*PHENYL*ALANYL*PROLYL*GLYCYL*ASPARTYL*VALYLTYROSYL*LYSYL*VALYL*TYROSYL*ARGINYL*TYROSYL*ASPARAGINYL*ALANYL*VALYLLEUCYL*ASPARTYL*PROLYL*LEUCYL*ISOLEUCYL*THREONYL*ALANYL*LEUCYLLEUCYL*GLYCYL*THREONYL*PHENYL*ALANYL*ASPARTYL*THREONYL*ARGINYLASPARAGINYL*ARGINYL*ISOLEUCYL*ISOLEUCYL*GLUTAMYL*VALYL*GLUTAMYLASPARAGINYL*GLUTAMINYL*GLUTAMINYL*SERYL*PROLYL*THREONYL*THREONYLALANYL*GLUTAMYL*THREONYL*LEUCYL*ASPARTYL*ALANYL*THREONYL*ARGINYLARGINYL*VALYL*ASPARTYL*ASPARTYL*ALANYL*THREONYL*VALYL*ALANYLISOLEUCYL*ARGINYL*SERYL*ALANYL*ASPARAGINYL*ISOLEUCYL*ASPARAGINYLLEUCYL*VALYL*ASPARAGINYL*GLUTAMYL*LEUCYL*VALYL*ARGINYL*GLYCYLTHREONYL*GLYCYL*LEUCYL*TYROSYL*ASPARAGINYL*GLUTAMINYL*ASPARAGINYLTHREONYL*PHENYL*ALANYL*GLUTAMYL*SERYL*METHIONYL*SERYL*GLYCYL*LEUCYLVALYL*TRYPTOPHYL*THREONYL*SERYL*ALANYL*PROLYL*ALANYL*SERINE with one hand.
i think its the longest word in the world at 1185 letters
i think u mean with your left hand when using both hands properly