"But let's consider," initially

• "Then again ...," in a tweet
• In contrast, in a text
• "However," to a texter
• "However," in textspeak
• However, on the WWW
• However, in a tweet
• Texter's transition
• Tweeter's "conversely"
• Then again, in text messages

Wiktionary Word definitions in Wiktionary
init. (alternative case form of OTOH English)